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. ELMA - 020-3325 - Hardware, Knob - Classic Collet Instrument Knob, 14.5mm, For 4mm Shaft.
    ELMA - 020-3325 - Hardware, Knob - Classic Collet Instrument Knob, 14.5mm, For 4mm Shaft.
    Special Price $2.49 Regular Price $2.95 As low as $1.98
    IN STOCK - MORE THAN 1,000 READY TO SHIP!

    ELMA - 020-3325  Hardware, Knob.

    › Precise quality knobs
    › Secure collet mounting

    For 4mm Round Shaft Diameter.

    Knurled without Indication Line.

    Precision Swiss quality made modular collet.

    Dimensions: 14.5mm Diameter x 17 mm High.

    Black Matte, Brass Insert.

    Has a screw on top to tighten.

    Front cover cap 040-3025 purchased separately. 

    Suitable Applications: Switches

    RoHS Compliant

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  2. ALCOKNOB - KNP-900B 1/8 - Equipment, knob. For 1/8" shaft, Stereos, Amplifiers, Instrumentation.
    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

     

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  3. Unidentified MFG - MS-278 - Project Box Enclosure - Black 3.3" Square with Lid.
    Unidentified MFG - MS-278 - Project Box Enclosure - Black 3.3" Square with Lid.
    Special Price $4.98 Regular Price $6.00 As low as $3.98
    IN STOCK - MORE THAN 100 READY TO SHIP!

    Project Box Enclosure.

    ideal solution for virtually any plastic project box application. Designed for indoor use, ABS cases are molded from high-quality, flame-retardant ABS plastic.

    Black ABS 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 hTransparent Coverole about 1.5" high in the back for mounting. 2.5 oz.

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  4. Unidentified MFG - MS-308 - Enclosure. Flange Mount with Lids.
    Unidentified MFG - MS-308 - Enclosure. Flange Mount with Lids.
    Special Price $6.98 Regular Price $8.50
    READY TO SHIP - ONLY 9 LEFT IN STOCK!

    MS-308 Enclosure.

    Flange Mount with Lids.

    Material: Sturdy Ridgid Plastic, Black.

    Dimensions: 7.5" x 4.5" x 2.25" OD less 0.7" wide flanges with four mounting holes.

    Metal inserts for seccuring front cover panel.

    Box has irregular 1" x 1.16" hole for Molex connector or other exit and three 0.157" holes in bottom.

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  5. Unidentified MFG - 8-431 - Square Switch Cap, MIDI Controller Knob/Button/Cap For 0.131" Square Shaft . Black.
    Unidentified MFG - 8-431 - Square Switch Cap, MIDI Controller Knob/Button/Cap For 0.131" Square Shaft . Black.
    Special Price $0.49 Regular Price $0.65 As low as $0.29
    IN STOCK - MORE THAN 1,000 READY TO SHIP!

    Hardware, MIDI Controller Knob/Button/CAP.

    Square Switch Cap

    Fits  0.135" Square or Retangular Shafts.

    For Slide Control Products.

    Material: Thermoplastic, Black.

    Mounting Type: Slip-On

    Dimensions: 0.5" Square x 0.46" tall. (12.7mm X 11.68mm)

    Applications: Various Slide Switch and Potentiometers ie Equilizers, Audio, Instrumentation.

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  6. Unidentified MFG - 8-348 - Control/Instrumentation Knurled Knob with Pointer Indicator. For 1/4" Shaft, Splined ID.
    Unidentified MFG - 8-348 - Control/Instrumentation Knurled Knob with Pointer Indicator. For 1/4" Shaft, Splined ID.
    Special Price $2.29 Regular Price $3.00 As low as $1.49
    IN STOCK - MORE THAN 1,000 READY TO SHIP!

    Hardware, Control /Instrumentation Knob with Pointer Indicator.

    Fits Standard 1/4" (0.250") Splined ID Shaft.

    Push-on Design for Convenient Secure Attachment

    Bar Skirted with Indicator Pointer.

    Material: ABS Black Plastic.

    Dimensions: 0.98" OD x 0.60" high.

    Applications: Control Devices (potentiometer, tuner, etc.) on a Radio, Amplifier, Testing Equipment or Musical Instruments, etc.

    Vintage - New Old Stock

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  7. Custom - 8-482 - Hardware, knobs. White. Package of 10.
    Custom - 8-482 - Hardware, knobs. White. Package of 10.
    $3.00
    Hardware, knobs. Slide pot knobs. Color: white. Dimensions: 9.8mm wide (0.387") x 5.5mm (0.219") deep x 11.1mm (0.438") high. Red and Black are available also. Note: I actually thick these knobs are better suited for P/B switch banks. They will fit a shaft 3.6mm x 2.4mm, but will sit parallel to slide pot. Package of 10. Learn More
  8. CUSTOM PLASTIC INJECTION - MS-231 - Enclosure. 4.6 x 2.4 x 1". Package of 2.
    CUSTOM PLASTIC INJECTION - MS-231 - Enclosure. 4.6 x 2.4 x 1". Package of 2.
    Special Price $2.95 Regular Price $4.50 As low as $2.25
    Hardware, enclosure. Material: plastic. Dimensions: 2.4" wide x 1" deep x 4.6" high. Has one slot 1.9" x 0.1" in one end, and one mounting tab with 0.2" hole. Color: black. Complete with lid. Package of 2. Learn More
  9. Gencon Plastic - MS-232 - Enclosure, Ribbed Project Box, 4.9"x4.6"x1.3" ABS Plastic.
    Gencon Plastic - MS-232 - Enclosure, Ribbed Project Box, 4.9"x4.6"x1.3" ABS Plastic.
    Special Price $5.98 Regular Price $8.50 As low as $4.98

    Gencon Plastic - MS-232 - Enclosure, Ribbed Project Box, 4.9"x4.6"x1.3" ABS Plastic.

    Acorn-Gencon® Plastics provides complete injection-molded product solutions from concept to completion. Engineered design services combined with complete manufacturing capabilities ensure the best project production flow from concept to completion.

    Ribbed Box with Battery Compartment.

    Material: Durable Plastic.

    Shape: Slightly Rectangular

    Material: ABS Plastic

    Dimensions: 4.9" Long x 4.6" Wide x 1.3" High with 3 Mount Feet.

    Overall 6" Wide with Feet.

    Removeable Slide Section 

    Color: Glossy Black.

    Applications: Suitable for Electronics

    New Old Stock - Made in USA

    Note: Screws not included

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  10. Unidentified MFG - 5-324 - Hardware, Slip-On Mounting Feet. Package of 10.
    Unidentified MFG - 5-324 - Hardware, Slip-On Mounting Feet. Package of 10.
    Special Price $1.49 Regular Price $1.98 As low as $0.98

    Hardware, Slip -On Mounting Feet.

    PROTECT HARD SURFACES - QUITE AND ANTI-SLIP 

    Rubber Tear Drop Feet for 3/16" Shaft.

    Color: Black.

    Dimensions: 3/8" wide x 1/2" high.

    Package of 10.

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  11. Unidentified MFG - 6-135 - Hardware, knobs. Package of 10.
    Unidentified MFG - 6-135 - Hardware, knobs. Package of 10.
    Special Price $2.25 Regular Price $3.00
    Hardware, knobs. For potentiometers/trimpots, flat style. Color: white. Package of 10. Note: Perfect fit for our P/N: MS-022, SKU 5942 pot, not included. Learn More
  12. Unidentified MFG - 267082 - Hardware, knobs. Package of 10.
    Unidentified MFG - 267082 - Hardware, knobs. Package of 10.
    $3.00
    Hardware, knobs. For potentiometers/trimpots, flat style. Color: white. Package of 10. Note: Perfect fit for our P/N: MS-022, SKU 5942 pot, not included. Learn More
  13. ITT Cannon - 161051PKG5 - Hardware, knob. Shaft: sq 1/8". Package of 5.
    ITT Cannon - 161051PKG5 - Hardware, knob. Shaft: sq 1/8". Package of 5.
    $5.00
    Hardware, knob. For switch banks with a square 1/8" shaft. material: plastic. Dimensions: 0.29" D x 0.272" high. Color: white. Package of 5. Note: Perfect fit for a switch bank like our SKU 1772, not included. Learn More
  14. Russell - Hazel - BoxORC1 - Enclosure. Tool case with snap lid.
    Russell - Hazel - BoxORC1 - Enclosure. Tool case with snap lid.
    Special Price $1.98 Regular Price $4.00 As low as $1.69
    IN STOCK - MORE THAN 100 READY TO SHIP!

    Russell - Hazel - BoxORC1 Enclosure.

    Tool case with snap lid.

    Material: Vinyl, slightly padded and reinforced.

    Dimensions: 7 x 4 x 1" deep.

    Application: For your keepsakes, small tools, replacement parts, etc.

    Color: Black.

    Learn More
  15. CUSTOM - 8-647 - Hardware, knob. For 1/4" half shaft or "D" shaped stems, Dimmer Switches of Fans.
    CUSTOM - 8-647 - Hardware, knob. For 1/4" half shaft or "D" shaped stems, Dimmer Switches of Fans.
    Special Price $1.19 Regular Price $1.85 As low as $0.79

    Hardware, Knob.

    • Replacement knob for trimatron devices
    • Slides on to dimmer shaft
    • Fits most rotary dimmers and fan speed controls

    For 1/4" half shaft. "D" Shaped Stem.

    Material: Plastic, Black with Gold face.

    OFF - LOW and CW arrow.

    Dimensions: 1.5" OD x 0.5" high.

    Nice knob for Fans and Dimmer switches.

    Alternate/Replacment: Levitron R61-26115-00I, Amertec-Westek 947

    Applications: Light Dimmer and Fan Controls

    Note: When replacing a round dimmer knob, be sure to look at the back to see which type of stem is compatible. Leviton dimming devices have a "D" shaped stem, which fits easily into round replacement knobs with a "D" shaped stem opening.

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  16. BUD INDUSTRIES - 60-2380-WH - 3/4'' Tall White 19'' Rack Shelf
    BUD INDUSTRIES - 60-2380-WH - 3/4'' Tall White 19'' Rack Shelf
    Special Price $24.98 Regular Price $48.50 As low as $19.98

    BUD INDUSTRIES - 60-2380-WH - Rack Shelf.

    From steel to aluminum, plastic to fiberglass, the Bud line of enclosures and racks is the most extensive and often the most affordable.  Shelves are one-piece, 16-gauge steel with flanged front and rear to support up to 200 lbs. All shelves come with necessary mounting hardware. Additional brackets are furnished to allow flexibility in mounting. Shelves allow sufficient room in rear for cables and power outlet strips. 

    Racks & Rack Cabinet Accessories Non-Ventilated Shelf

    19" White RAK Shelf 19" across x 19.25" deep and 0.75" high.

    Unit Weight: 7.5 lbs.

    Note: Orders over 5 lbs require additional shipping charge dependent upon destination.

    Alternate P/Ns: Mouser 563-SH-2380, Newark 05M4595 

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  17. Unidentified MFG - TF-020215 - Enclosure. Project box, without lid.
    Unidentified MFG - TF-020215 - Enclosure. Project box, without lid.

    TF-020215 Enclosure. Project box, without lid.

    Dimensions: 1.85" long x 1.83" wide x 1.46" high.

    Mounting ears each side.

    Color: Black. No lids.

    Learn More
  18. Unidentified MFG - MS-244 - Enclosure. Project Box, Two Part.
    Unidentified MFG - MS-244 - Enclosure. Project Box, Two Part.
    Special Price $3.98 Regular Price $5.50 As low as $2.98
    READY TO SHIP - ONLY 78 LEFT IN STOCK!

    Project Enclosure. Two part.

    Material: Durable Plastic.

    Dimensions: 5.5" x 4.5" x 1.75".

    Two long mounting holes, small 1.6" wide access slot in rear 0.3" high.

    Color: Black.

    Learn More
  19. Unidentified MFG - 8-674 - Hardware, knob. For 1/4" shaft.
    Unidentified MFG - 8-674 - Hardware, knob. For 1/4" shaft.
    $1.00
    Hardware, knob. For 1/4" shaft. Snap on. Knurled. Metal collett. Material: plastic, black. Dimensions: 1.277" D x 0.767" high. No set screws. Learn More
  20. Hammond  - 8-417 - Equipment  Chassis Handles. Package of 2.
    Hammond - 8-417 - Equipment Chassis Handles. Package of 2.
    Special Price $4.98 Regular Price $6.50

    Hammond Equipment Chassis Handles.

    Status: Discontinued

    Offset Round Handle

    Black Anodized Aluminum.

    Approx 4-3/4" long (offset), stands 1.25" off panel with 4-9/16" ctrs.

    10/32 Threaded Hole Pull Handle

    Package of 2.

    Learn More
  21. Unidentified MFG - 8-195 - Hardware, knob. For test equipment.
    Unidentified MFG - 8-195 - Hardware, knob. For test equipment.
    $25.00
    READY TO SHIP - ONLY 7 LEFT IN STOCK!

    Hardware, Bakelite knob. For test equipment or variable resistors/variac(s). Material: bakelite. Dimensions: 2.33" (60mm) D, threaded ID for 1/2" stud. One set screw required, not included. Color: black.

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  22. Unidentified MFG - 8-113 - Hardware, Knob. For 1/4" Half Flattened  or "D" shaped Shaft.
    Unidentified MFG - 8-113 - Hardware, Knob. For 1/4" Half Flattened or "D" shaped Shaft.
    Special Price $3.98 Regular Price $6.00
    IN STOCK - MORE THAN 500 READY TO SHIP!

    Hardware, Knob. For snap-on 1/4" half flattened or "D Shaped" Shaft.

    No set screw.

    Material: Plastic, black.

    With indent Finger Touch Control.

    Dimensions: 1-1/4" Diameter x 5/8" High.

    Vintage - New Old Stock

    Learn More
  23. Unidentified MFG - 46156-01 - Hardware, Knob. Package of 4.
    Unidentified MFG - 46156-01 - Hardware, Knob. Package of 4.
    Special Price $1.49 Regular Price $2.00 As low as $0.98
    READY TO SHIP - ONLY 99 LEFT IN STOCK!

    Hardware, Dial Knob.

    Shaft Diameter 1/4".

    Shaft not Flush with Knob.

    Dimensions: 7/8" wide x 1/2" high.

    Color: Black.

    Package of 4 pot knobs.

    Learn More
  24. Unidentified MFG - 40824 - Hardware, Strain Relief Grommet / Boot. Square 16mm.
    Unidentified MFG - 40824 - Hardware, Strain Relief Grommet / Boot. Square 16mm.
    Special Price $0.89 Regular Price $1.29 As low as $0.49
    IN STOCK - MORE THAN 500 READY TO SHIP!

    Unidentified MFG - 40824 - Hardware, Rubber Strain Relief Grommet / Boot.

    Cable Glands - Cord Grip

    Square (16mm) 0.636" x 0.630" x 0.247" with a 6mm hole, and 1.160" length behind top.

    Material: Rubberized Plastic.

    Color: Black.

    Note: Cord Grip.

    Learn More
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