Hardware

Electronic Hardware Components & Parts

Electronic Surplus carries a broad variety of surplus hardware components and parts. We have electronic knobs, gears, bearings, enclosures, spacers, and much more. Our electronic hardware for sale comes from top-grade manufactures like 3AM and ABB Control.      

Some of our electronic hardware for sale comes in the manufacturer’s original packaging, while others are slightly used. We’re proud to say that when you order a used electronic hardware component from Electronic Surplus, you don’t have to worry about quality. Our team of experts checks each and every used item before we put it up for sale.  

Shop our surplus hardware components below. Is the part you need out of stockRequest it here. 

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  1. !@ 2 items
  2. LEADER 1 item
  3. 3M 5 items
  4. Unmarked 391 items
  5. ABB CONTROL INC. 2 items
  6. Aavid Thermalloy 1 item
  7. Analog Devices Inc 1 item
  8. Accuride 3 items
  9. ACME 4 items
  10. Adel Wiggins 3 items
  11. ACCURATE 1 item
  12. Allen Bradley - AB 1 item
  13. Alcoknob 2 items
  14. Alco Electric 1 item
  15. Allmetal 1 item
  16. Alcoswitch 1 item
  17. Alatec Products 1 item
  18. Alpha Metals 1 item
  19. Akryl 1 item
  20. Amp Inc 14 items
  21. American Fastener 5 items
  22. AMP/TYCO ELECTRONICS 1 item
  23. AMP 1 item
  24. American 1 item
  25. Amatom 1 item
  26. Amphenol 4 items
  27. Anacondia Metal Hose Co 1 item
  28. Arrow Hart & Hart 1 item
  29. Appleton 1 item
  30. Anchor 1 item
  31. Armstrong 1 item
  32. Anthro 1 item
  33. Astatic 1 item
  34. APPLETON ELECTRIC CO. 1 item
  35. Bergquist 4 items
  36. Bird 2 items
  37. BI (BECKMAN) 1 item
  38. Bivar Inc 8 items
  39. Bourns 1 item
  40. Berquist 7 items
  41. BIVAR 2 items
  42. Bogen 1 item
  43. BARCO 1 item
  44. Bell Electric 1 item
  45. BLH ELECTRONICS 1 item
  46. BW Controller Corporation 1 item
  47. Brady 2 items
  48. Browning 3 items
  49. BYRD 1 item
  50. Bud Industries 3 items
  51. Burndy 2 items
  52. Cambion 3 items
  53. Centronix 1 item
  54. Challenger 26 items
  55. Calrad 3 items
  56. Catamount 1 item
  57. Century 1 item
  58. CANPLAS 1 item
  59. Caravan Protective Cases 1 item
  60. Chesterton 1 item
  61. CAMLOC 1 item
  62. Century Fasteners Corp 5 items
  63. CLIPPARD 2 items
  64. CONCORD 2 items
  65. Cooper Crouse-Hinds 1 item
  66. Comptrol 1 item
  67. Conbraco Industries 1 item
  68. Cleveland Steel & Polymer 1 item
  69. CORNUCOPIA TOOL & PLASTICS 1 item
  70. Comcab 1 item
  71. CTS 1 item
  72. Cutler-Hammer 4 items
  73. Crydom 1 item
  74. Custom 10 items
  75. CUSTOM PLASTIC INJECTION 1 item
  76. DAKA-WARE 1 item
  77. Cutler-Hammer / Eaton * 1 item
  78. Cutler-Hammer / Eaton 1 item
  79. Dek Inc/Deklip 4 items
  80. DATA-WARE 1 item
  81. DENNISON 1 item
  82. Dayton 19 items
  83. EF JOHNSON CO 1 item
  84. Eagle 2 items
  85. ELECTROVERT 1 item
  86. EAO Switch 2 items
  87. Electronic Hardware Corp 1 item
  88. ELECTRONIC HARDWARE CORP. 3 items
  89. Edwards Signaling Products 1 item
  90. EECO 1 item
  91. Durant / Eaton 1 item
  92. DUPONT 1 item
  93. E F JOHNSON CO 1 item
  94. Die-Cut Products Co 1 item
  95. DREXELBROOK 1 item
  96. ELESA. 1 item
  97. Elma 1 item
  98. ESSEX 1 item
  99. Entegris 1 item
  100. FALK/SUNDSTRAND 2 items
  101. FASTENAL 2 items
  102. General Electric 7 items
  103. Federal Pacific 1 item
  104. GC Electronics 1 item
  105. Gemini 1 item
  106. Gary Plastic Packaging 2 items
  107. General Devices 1 item
  108. GM/DELCO 1 item
  109. Globe Electronics 3 items
  110. Harris Corp 2 items
  111. GRAYHILL 2 items
  112. Gould 3 items
  113. GREENLITE 2 items
  114. Golconda Screw Inc 2 items
  115. GUDEBROD 1 item
  116. HAMMOND MANUFACTURING 1 item
  117. Hewlett Packard 1 item
  118. HEYCO 13 items
  119. HH Smith 3 items
  120. HERMAN SMITH INC 3 items
  121. Hoffman 10 items
  122. Hellerman Tyton 25 items
  123. HIRSH CO. 1 item
  124. HARTING 1 item
  125. HELLERMAN 1 item
  126. Hazel 1 item
  127. Hoffman Engineering 1 item
  128. HILTI 4 items
  129. HH SMITH/ABBATRON 1 item
  130. IERC 2 items
  131. Hubbell 2 items
  132. ICO 1 item
  133. Ideal Industries 1 item
  134. HUBBARD 1 item
  135. INTERNAT. COMPONENTS 1 item
  136. ITT 1 item
  137. ITT Cannon 5 items
  138. Keystone Electronics 8 items
  139. KNOBS INC - Berkeley 1 item
  140. JENSEN 1 item
  141. JABSCO 1 item
  142. ITW 1 item
  143. ISSC 1 item
  144. KIRKHILL-TA MFG 1 item
  145. Leviton 1 item
  146. LESLIE LOCKE 1 item
  147. Leecraft 1 item
  148. MAJOR 3 items
  149. Magnecraft/S&D 1 item
  150. MAGNAVOX 3 items
  151. LOCKHEED 2 items
  152. LORD MANUF. 2 items
  153. LORD MFG. 2 items
  154. LMB HEEGER 1 item
  155. MALIN Co 1 item
  156. MELLOWES CO 1 item
  157. MICRO PLASTICS 6 items
  158. MATS Avionics 1 item
  159. Meltric Corp 1 item
  160. Mitsubishi 1 item
  161. Motorola 5 items
  162. Midwest Service 1 item
  163. MILITARY 18 items
  164. MINE SAFETY APPLIANCES 2 items
  165. MSC 2 items
  166. MUELLER ELECTRIC CO. 3 items
  167. Mueller Electric Co 1 item
  168. MUELLER 1 item
  169. N/AN/A 1 item
  170. NIBCO 2 items
  171. Philips 10 items
  172. NTE Electronics Inc 7 items
  173. NITTO DENKO/PERMACEL 1 item
  174. NORCAM 1 item
  175. NIAGARA PLASTICS CO. 1 item
  176. Ohmite 3 items
  177. OEC 1 item
  178. OMRON 1 item
  179. OPCON 1 item
  180. Pactec 3 items
  181. Panduit 10 items
  182. Pfantone 7 items
  183. P.S.M. FASTENER 1 item
  184. PARCO INC 1 item
  185. Paramount 1 item
  186. PLASTICLINE 1 item
  187. Polycase Products 1 item
  188. Picker International 1 item
  189. Phoenix Contacts 1 item
  190. Plast-A-Matic 1 item
  191. RAYCHEM 3 items
  192. RAYTHEON 1 item
  193. PULLMAN 1 item
  194. RAF ELECTRONIC 1 item
  195. PREMIER FARNELL UK LIMITED 1 item
  196. RICHCO PLASTICS CO 6 items
  197. Rogan Brothers 3 items
  198. Rogers 1 item
  199. Robinson Aviation 1 item
  200. ROGAN 1 item
  201. ROCKWOOD 1 item
  202. RED DEVIL INC 1 item
  203. REES Inc 1 item
  204. RITTAL CORP. 4 items
  205. Roxtec 3 items
  206. Roxtec AB 1 item
  207. REXROTH / INDRAMAT 1 item
  208. RMF PRODUCTS 1 item
  209. Schatz 1 item
  210. Schurter 1 item
  211. Servicestar 1 item
  212. Semiconductor Technology Inc 1 item
  213. Sealectro 1 item
  214. SDP/SI 1 item
  215. SIFAM 1 item
  216. SINCLAIR & RUSS INC. 1 item
  217. SSAC 1 item
  218. SOL-VEX 1 item
  219. Southco 9 items
  220. SPC TECHNOLOGY 2 items
  221. SQUARE D 1 item
  222. SLOAN 3 items
  223. SPEARS MANUFACTURING CO 3 items
  224. StockCap 1 item
  225. SUBURBAN INDUSRTIES INC. 1 item
  226. T&B/Ansley 2 items
  227. Tektronix 2 items
  228. TENDON 1 item
  229. T & M Plastics 1 item
  230. T&B 1 item
  231. TACTEC 1 item
  232. Tech-Etch Inc 1 item
  233. THOMAS & BETTS 2 items
  234. Thermalloy/Aavid 37 items
  235. TINNERMAN 1 item
  236. TOMCO 1 item
  237. THERMALLOY 1 item
  238. Torrington 1 item
  239. TRANSCRIBER 1 item
  240. TYCO/T&B 2 items
  241. Umpco 11 items
  242. Wakefield Engineering 2 items
  243. Waldes-Truarc 5 items
  244. W M Berg 3 items
  245. Vector 1 item
  246. VETTE 1 item
  247. VLIER 1 item
  248. Warner Electric 7 items
  249. WAXMAN INDUSTRIES 1 item
  250. Westcoast Air Devices 1 item
  251. XEROX 1 item
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Items 1-24 of 1029

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  1. DAKA-WARE - Davis Molding - 197267A1 - Hardware Fluted Finger Grip Knob, For 1/4" - 28 Threaded Shaft.
    Special Price $3.98 Regular Price $6.50 As low as $3.49
    IN STOCK - MORE THAN 100 READY TO SHIP!

    DAKA-WARE - Davis Molding - 197267A1 - Hardware Fluted Finger Grip Knob.

    Heavy Duty Knob for 1/4" (6.35mm) - 28 Shaft.

    Twelve Flute Knob

    Material: Compression Molded Phenolic (Bakelite)

    Stronger & More Durable than Plastic

    Color: Black 

    Approximate Dimensions: 1.750" OD x 1.015" Depth With 0.075 Pilot Diameter

    Molded-In Brass Insert threaded 1/4" - 28 over 0.50" Deep

    Genuine Vintage DAKA-WARE - New Old Stock

    Made in Chicago USA

     

    Learn More
  2. Plast-A-Matic - Project Box - Enclosure. Instrument Enclosure, 2 piece.
    Special Price $3.98 Regular Price $6.50
    IN STOCK - MORE THAN 1,000 READY TO SHIP!

    Plast-A-Matic - Project Box Enclosure.

    Instrument Enclosure, 2 piece top & bottom.

    Snaps together, requires 4 screws (not included).

    Front panel would be approximately 5.25"wide x 2.5" tall (not included).

    Material: Plastic.

    Actual Dimensions: 138 x 71 x 130mm deep.

    Color: Gray.

    Learn More
  3. Mueller Electric Co - BU-60 series - Hardware, Alligator clips. 10 Amp. Package of 25.
    Special Price $4.98 Regular Price $7.00
    READY TO SHIP - ONLY 31 LEFT IN STOCK!

    Mueller Electric Co - BU-60 series Hardware, alligator clips.

    Jaw Opening:     0.310" (7.87mm)             

    Current Rating (Amps):  10A       

    Material:  Steel     

    Plating: Nickel   

    Insulation: Non-Insulated  

    Color:    Natural

    Length: 1.970" (50.04mm)           

    Termination: Crimp or Solder

    Note: May have a bit of "RUST" from moisture during storage.

    Compatible with all shrouded, unshrouded, or retractable 0.16" (4mm) banana plugs, solder or crimp connection, jaw opens 0.31" (7.9 mm) max.

    Material: Nickel-plated steel (BU-60). Length: 1.97" (50mm).

    Package of 25.

    Learn More
  4. MAGNAVOX - 6-351 - Hardware, Knob. For 1/4" Flat / Flattened Shaft. Knurl Edge
    Special Price $4.98 Regular Price $8.95 As low as $3.98
    IN STOCK - MORE THAN 1,000 READY TO SHIP!

    MAGNAVOX Hardware, Knurled Knob.

    For 1/4" Flat Flattened shaft.

    Knurled edge for fingertip.

    Material: Spun aluminum over plastic base.

    Dimensions: 1-1/8" D x 0.882" high.

    Has a 3/16" indicating line on top.

    Color: Satin Silver. Nice Stereo/Amplifier Volume or tuning knobs.

    Note: May in fact be only 6mm flattened shaft. Will fit our 1/4" shaft extender, but tight.

    Similar to TE Connectivity KLN1250A1/4

    See our large collection of knobs here:

    https://www.electronicsurplus.com/hardware/knob

    Learn More
  5. MAGNAVOX - 6-347 - Hardware, knob. For 1/4" half flatted shaft.
    Special Price $4.98 Regular Price $8.95 As low as $3.98
    IN STOCK - MORE THAN 500 READY TO SHIP!

    MAGNAVOX Hardware, Knob. Knurled

    Indicating. Press-fit for 1/4" flat flatted shaft.

    Two rows of surface control ridges around perimeter.

    Material: Aluminum.

    Dimensions: 0.85" OD x 0.88" high.

    Color: Satin silver.

    Note: May in fact be only 6mm flattened shaft.

    Will fit 1/4" shaft but tight.

    Simliar to TE Connectivity KN700A1/4

    Learn More
  6. KNOBS INC - Berkeley - 144010-2 - Hardware, knob. For slide potentiometers.
    $0.50
    Hardware, knob. For slide potentiometers with an 0.2" wide shaft. Material: Black anodized aluminum with plastic inserts - 0.355" x 0.21" x 0.8" long. Rectangular / Oval ends, very nice. Learn More
  7. ELMA - 020-3325 - Hardware, Knob / Classic Collet Instrument Knob. For 1/8" shaft.
    Special Price $1.69 Regular Price $2.00 As low as $1.49
    IN STOCK - MORE THAN 1,000 READY TO SHIP!

    ELMA - 020-3325  Hardware, knob.

    For 1/8".

    Knurled.

    Precision Swiss quality made modular collet.

    Dimensions: 14.5mm D x 17 mm high.

    Black matte, brass insert.

    Has a screw on top to tighten.

    Front cover cap not included.

    Learn More
  8. DAKA-WARE - Davis Molding - DAK-P1105-27 - 1914-AS - Hardware, Instrument Knob. For 1/8" shaft. Package of 2.
    Special Price $3.98 Regular Price $6.00
    IN STOCK - MORE THAN 100 READY TO SHIP!

    DAKA-WARE - Davis Molding - DAK-P1105-27 - 1914-AS - Hardware, Instrument Knob.

    For 1/8" (6.35 mm) shaft, with set screw.

    Eight Knurled/Raised/ Ribbed Edges for ease of gripping.

    Material: Compression Molded Phenolic Knobs

    Black with Silver/Brushed Aluminum Tone Face and pointer.

    Dimensions: 0.745"OD x 0.487" high. (21-30 mm)

    New Old Stock

    Made in Chicago USA

    Lot of 2

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  9. ALCOKNOB - KNP-900B 1/8 - Equipment, knob. For 1/8" shaft, Stereos, Amplifiers, Instrumentation.
    Special Price $5.98 Regular Price $8.00
    IN STOCK - MORE THAN 100 READY TO SHIP!

    ALCO KNOB - KNP-900B  Series KPN Knob.

    Status: Discontinued

    Fits 1/8" shaft, with one set screw.

    Heavy, Silver. - Stright Knurled

    Matrial: Black Anodized Aluminum  with Vertical Pointer.

    Dimensions: 0.931 OD x 0.54" high. (33.6 X 13.7 mm)

    Applications: Stereos, Amplifiers, Instrumentation. Vintage - Newer Used - Genuine Alco - New Old Stock

     

    Learn More
  10. ACME - 6-349 - Hardware, Knob. 1/4" Flattened Shaft. Stereo , Control, Volume, HI-FI, Amplifier. Package of 4
    Special Price $5.98 Regular Price $8.50
    IN STOCK - MORE THAN 1,000 READY TO SHIP!

    ACME Hardware, knob.

    For 1/4" flattened shaft.

    Black Band 0.74" around it for gripping easily.

    Material: Attractive Chromed Aluminum.

    Dimensions: 0.62" D x 0.90" high.

    Color: Silver.

    Note: The orientation of the indicator line is straight up from the center of the 1/4" (D) circle.

    Upgrade your Old System with High Quality New Old Stock Knobs.

    Package of 4

    Learn More
  11. Unidentified MFG - MS-278 - Project Box Enclosure - Black 3.3" Square with Lid.
    Special Price $3.98 Regular Price $4.95
    IN STOCK - MORE THAN 100 READY TO SHIP!
    Enclosure. Black plastic box with mostly transparent cover. Dimensions: 3.3"square 1.4"D overall OD, 3.0" square x 1.1"Deep ID. One slot in the side for an RJ jack 0.56 x 0.68" and an oval hole about 1.5" high in the back for mounting. 2.5 oz. Learn More
  12. Unidentified MFG - MS-308 - Enclosure. Flange mount with lids.
    $4.95
    READY TO SHIP - ONLY 18 LEFT IN STOCK!

    Enclosure. Flange mount with lids. Material: plastic, black. Dimensions: 7.5" x 4.5" x 2.25" OD less 0.7" wide flanges with four mounting holes. Metal inserts for mounting front panel. Box has irregular 1" x 1.16" hole for Molex connector or mouse exit and three 0.157" holes in bottom.

    Learn More
  13. Unidentified MFG - 8-431 - Hardware, knob. For shaft 0.131" square. Black.
    $0.50
    IN STOCK - MORE THAN 1,000 READY TO SHIP!

    Hardware, midi controller knob. For shaft 0.131" square. For slide control products. Material: plastic, black. Dimensions: 0.5" square x 0.46" tall.

    Learn More
  14. Unidentified MFG - 8-348 - Hardware, knob. For 1/4" shaft, splined ID.
    $2.00
    IN STOCK - MORE THAN 1,000 READY TO SHIP!

    Hardware, instrument knob. For 1/4" shaft, splined ID. Knurled with skirt. Material: plastic, black. Dimensions: 0.98" OD x 0.60" high.

    Learn More
  15. Unidentified MFG - 202-297 - Hardware, heatsink. For TO-220. Package of 10.
    $3.00
    IN STOCK - MORE THAN 500 READY TO SHIP!

    Hardware, heatsink. For TO-220 components. 10 Fin. Material: aluminum, black anodized. Vertical mount. Dimensions: 1.18" x 1"wide x 0.5" high. Predrilled for devise with one 0.15" / 3.8mm hole, bottom is flat, no tabs or nubs. Package of 10.

    Learn More
  16. Unidentified MFG - 6-011 - Hardware, knob. For slide pots. Package of 10.
    Special Price $4.98 Regular Price $6.00
    IN STOCK - MORE THAN 100 READY TO SHIP!

    Hardware, Slider Knobs.

    For Slide Potentiometers.

    For shaft: 0.159" x 0.060" thick.

    Material: Plastic, Black with Silver Top.

    With Tiny Pointer on one side.

    Dimensions: 0.635" long x 0.390" deep x 0.521" high.

    Package of 10.

    Learn More
  17. UMPCO - MS21333-77 - Cushioned loop clamp, 1". ID. Package of 3.
    $3.00
    Hardware, cable clamps. Cushioned loop clamp, 1" ID. Tongue hole type, oil resistant. Distance from loop center to tongue end: 1.125". Center to center distance between loop and mounting hole: 0.906". Overall width: 0.625". Material: steel, carbon with synthetic rubber mil grade Mil-R-3065. Material thickness: 0.032". Military NSN 5340-00-922-6300. More info: http://www.umpco.com/products_pdf/NASM21333.pdf Package of 3. Learn More
  18. UMPCO - MS21333-75 - Cushioned loop clamp, 3/4" ID. Package of 6.
    $6.00
    Hardware, cable clamps. Cushioned loop clamp, 3/4" ID. Tongue hole type, oil resistant. Distance from loop center to tongue end: 1.0". Center to center distance between loop and mounting hole: 0.781". Overall width: 0.500". Material: steel, carbon with synthetic rubber mil grade Mil-R-3065. Material thickness: 0.032". Military NSN 5340-00-050-2740. More info: http://www.umpco.com/products_pdf/NASM21333.pdf Package of 6. Learn More
  19. UMPCO - 754WS13-2-8 - Cushioned loop clamp, 3/4" ID.
    $1.00
    Hardware, cable clamps. Cushioned loop clamp, 3/4" ID, #12. Material: rubber over steel, with a 1/4" mounting hole. Learn More
  20. Aavid Thermalloy - 2228B - 322805B0000G - Hardware, Heatsink. For TO-39 or TO-5 components.
    Special Price $2.98 Regular Price $4.50
    IN STOCK - MORE THAN 100 READY TO SHIP!

    Aavid Thermalloy - 2228B - 322805B0000 - TO-39 / TO-5 Heatsink.

    low cost, easily installed, push-on heat sink. This device may be installed after assembly and takes up little additional board space.

    Passive heat sink with 3 cooling fins for increased thermal performance

    For TO-39 or TO-5 components.

    Thermal Resistance: 40 C/W  - 3.0 Watt

    Material: Black Anodized Aluminum.

    Nominal Dimensions: 0.75" D x 0.4" high. (22.23mm x 13.49mm)

    RoHS Compliant

    Replacement for NTE401 -NSN 5999-00-873-3812 Features

    Overall Height: 0.531 inches nominal

    Material Document and Classification: QQ-A-225/6 fed spec single material response

    Surface Treatment Document and Classification MIL-A-8625, type 2, class 2 mil spec single treatment                      response

    Learn More
  21. Thermalloy/Aavid - 507222B00000 - Hardware, heatsink. Dual TO-220. Package of 10.
    Special Price $3.98 Regular Price $6.50
    READY TO SHIP - ONLY 62 LEFT IN STOCK!

    Thermalloy/Aavid - 507222B00000 Hardware, heatsink.

    For two TO-220 Components.

    Dewscription: 12 Fin.

    Material: Black Anodized Aluminum.

    Dimensions: 1.47 x 1.75" x 0.38" tall (37.4mmL x 44.5mmW x 9.7mm).

    Vertical or horizontal Mount. 

    Thermal Resistance: 9.6 C / W.

    Power dissipation 8W @ 70 Degree C.

    Rohs Compliant.

    More info: www.aavidthermalloy.com/cgi-bin/stdisp.pl?Pnum=507222b00000g

    Cross Reference: 6072B

    Package of 10.

    Learn More
  22. Thermalloy/Aavid - THM6054B-SE1 - Hardware, heatsink. For TO-3 components.
    $1.99
    Hardware, heatsink. For TO-3 components. Black, lightweight material. Dimensions: 45.8mm (1.806") square x 32.2mm (1.271") tall and has 20-fins, 5 each side. ID 1.67" and has (2) 6/32 threaded rivets on bottom. Learn More
  23. TACTEC - Stickyone - Phenolic insulation board. Package of 25.
    Special Price $7.98 Regular Price $14.95
    IN STOCK - MORE THAN 5,000 READY TO SHIP!

    Phenolic insulation board,

    8 x 3"/ Thin 0.011" / 0.2mm phenolic board (tan/orange) used as insulation / circuit board protection in hand held radios and other items requiring insulation.

    Has 6 notches cut out of it, about 1/2" wide.

    Package of 25.

    Phenolic Insulation Boards Phenolic insulation boards are the most effective type of rigid insulation boards currently available. Phenolic insulation board is manufactured by a process in which a plastic foam forms an insulating core between two flexible facing layers.

    Learn More
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Items 1-24 of 1029

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