PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-301Contact,electrical

Eaton Corp Opns & Technical Center · NSN 5999-00-501-7852 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-501-7852 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-501-7852. Primary manufacturer part number: 21-301.
Features
  • Contact,electrical — FSC 5999
  • Unthreaded Mounting Hole Diameter: 0.132 INCHES NOMINAL IN
  • Material: COPPER CONTACT
  • Mounting Facility Quantity: 1
  • Mounting Method: UNTHREADED HOLE(S)
  • Material: COPPER BODY
  • Unthreaded Mounting Hole Diameter: 0.132 INCHES NOMINAL IN
  • Material: COPPER CONTACT
Applications
  • Applications requiring Copper Contact construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-501-7852, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Eaton Corp Opns & Technical Center. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-501-7852
Primary Part Number21-301
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerEaton Corp Opns & Technical Center
StatusACTIVE
Unthreaded Mounting Hole Diameter0.132 INCHES NOMINAL IN
MaterialCOPPER CONTACT
Mounting Facility Quantity1
Mounting MethodUNTHREADED HOLE(S)
MaterialCOPPER BODY
Unthreaded Mounting Hole Diameter0.132 INCHES NOMINAL IN
MaterialCOPPER CONTACT
Mounting Facility Quantity1
Mounting MethodUNTHREADED HOLE(S)
MaterialCOPPER BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight0.0200 lbs
Cube0.0020 cu ft
Verified Substitutes 11
3895-00-163-238521-301 INTERCHANGEABLE
Support,scraper Blade
Komatsu America Corporation
5120-00-222-162021301 INTERCHANGEABLE
Clamp,c
Wilton Corp Wilton Tool Div
5950-00-645-52192130-1 INTERCHANGEABLE
Transformer,audio Frequency
Electronic Transformer Corp Div Electronic Transformer Corporation
2835-00-654-675721301 INTERCHANGEABLE
Terminal Block,console
Solar Turbines Incorporated Dba Solar Turbines Incorporated
6230-01-027-32932130-1 INTERCHANGEABLE
Light,extension
Control Products Corporation
5945-01-095-390021-301 INTERCHANGEABLE
Relay,solid State
Te Connectivity Corporation
4320-01-189-696621301 INTERCHANGEABLE
Mounting Flange
Parker Hannifin Corporation Div Hydraulic Systems Division
7520-01-413-506026032 INTERCHANGEABLE
Tray,pen and Pencil
Officemate Intl Corp
4810-01-419-052121301-002 INTERCHANGEABLE
Valve,linear,directional Control
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
1005-01-503-002321301 INTERCHANGEABLE
Bore,brush
Charles Reed Knight Jr Dba Knight's Armament Company
Cross-Reference Index
Part NumberManufacturer
21-301 PRIMARY Eaton Corp Opns & Technical Center (USA)
Related Parts
3895-00-163-2385INTERCHANGEABLE
SUPPORT,SCRAPER BLADE
21-301
5120-00-222-1620INTERCHANGEABLE
CLAMP,C
21301
5950-00-645-5219INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
2130-1
2835-00-654-6757INTERCHANGEABLE
TERMINAL BLOCK,CONSOLE
21301
6230-01-027-3293INTERCHANGEABLE
LIGHT,EXTENSION
2130-1
5945-01-095-3900INTERCHANGEABLE
RELAY,SOLID STATE
21-301
4320-01-189-6966INTERCHANGEABLE
MOUNTING FLANGE
21301
7520-01-413-5060INTERCHANGEABLE
TRAY,PEN AND PENCIL
26032
4810-01-419-0521INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21301-002
1005-01-503-0023INTERCHANGEABLE
BORE,BRUSH
21301
6510-01-591-7740INTERCHANGEABLE
DRESSING,HEMOSTATIC
1090

Frequently Asked Questions

What is NSN 5999-00-501-7852?

NSN 5999-00-501-7852 is a Contact,electrical, manufactured by Eaton Corp Opns & Technical Center, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-00-501-7852?

NSN 5999-00-501-7852 has 1 cross-referenced part number: 21-301 (Eaton Corp Opns & Technical Center).

What NSN replaces 5999-00-501-7852?

There are 11 known substitutes for 5999-00-501-7852: 3895-00-163-2385, 5120-00-222-1620, 5950-00-645-5219 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-301?

Key specifications for 21-301: Unthreaded Mounting Hole Diameter: 0.132 INCHES NOMINAL IN; Material: COPPER CONTACT; Mounting Facility Quantity: 1; Mounting Method: UNTHREADED HOLE(S). 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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