PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-385Contact Assembly,electrical

Eaton Corp Opns & Technical Center · NSN 5999-00-499-6275 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-499-6275 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-499-6275. Primary manufacturer part number: 21-385.
Features
  • Contact Assembly,electrical — FSC 5999
  • Precious Material: SILVER
  • Precious Material and Location: CONTACTS SILVER
  • Contact Item Name Assigned by Government Agency: CONTACT ASSY
  • Government Agency Controlling Contact: USA AND USN
  • Contact Identifying Number Assigned by Government Agency: 21-385
  • Precious Material and Weight: 0.500 SILVER GRAINS, TROY
  • Contact Quantity: 2
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Contact Assembly,electrical, cataloged under National Stock Number 5999-00-499-6275, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-499-6275
Primary Part Number21-385
Item NameContact Assembly,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerEaton Corp Opns & Technical Center
StatusACTIVE
Precious MaterialSILVER
Precious Material and LocationCONTACTS SILVER
Contact Item Name Assigned by Government AgencyCONTACT ASSY
Government Agency Controlling ContactUSA AND USN
Contact Identifying Number Assigned by Government Agency21-385
Precious Material and Weight0.500 SILVER GRAINS, TROY
Contact Quantity2
Structural DesignNONSWITCHING
Mounting ConfigurationONE 0.312 IN. LG X 0.125 IN. W SLOT AND ONE 0.141 IN. DIA UNTHD HOLE SPACED 0.844 IN. C TO C IN
Precious MaterialSILVER
Precious Material and LocationCONTACTS SILVER
Contact Item Name Assigned by Government AgencyCONTACT ASSY
Government Agency Controlling ContactUSA AND USN
Contact Identifying Number Assigned by Government Agency21-385
Precious Material and Weight0.500 SILVER GRAINS, TROY
Contact Quantity2
Structural DesignNONSWITCHING
Mounting ConfigurationONE 0.312 IN. LG X 0.125 IN. W SLOT AND ONE 0.141 IN. DIA UNTHD HOLE SPACED 0.844 IN. C TO C IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Weight0.0100 lbs
Cube0.0009 cu ft
Verified Substitutes 6
5325-00-256-2846 INTERCHANGEABLE
Ring,retaining
5305-01-149-539321385 INTERCHANGEABLE
Screw,cap,hexagon Head
Dana Commercial Vehicle Products, Llc
5330-01-192-1701624-34 INTERCHANGEABLE
Seal Kit
Dana Corp Mobile Fluid Products Div
4720-01-304-07754261-1385 INTERCHANGEABLE
Hose,preformed
Gates Corporation
4810-01-512-034521385-001 INTERCHANGEABLE
Valve,linear,directional Control
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
5945-01-534-721162434 INTERCHANGEABLE
Relay,electromagnetic
Exceltec Intl Corp
Cross-Reference Index
Part NumberManufacturer
82827W1ITEM37 Eaton Corp Opns & Technical Center (USA)
85193W1ITEM3E Eaton Corp Opns & Technical Center (USA)
81730W1ITEM40 Eaton Corp Opns & Technical Center (USA)
83039W1ITEM10 Eaton Corp Opns & Technical Center (USA)
85707W1ITEM18 Eaton Corp Opns & Technical Center (USA)
4862ITEM3E Eaton Corp Opns & Technical Center (USA)
21-385 PRIMARY Eaton Corp Opns & Technical Center (USA)
83052W1ITEM11 Eaton Corp Opns & Technical Center (USA)
4860ALT1ITEM2F Eaton Corp Opns & Technical Center (USA)
62434 Johnson a and Co Inc (USA)
Related Parts
5325-00-256-2846INTERCHANGEABLE
RING,RETAINING
5305-01-149-5393INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
21385
5330-01-192-1701INTERCHANGEABLE
SEAL KIT
624-34
4720-01-304-0775INTERCHANGEABLE
HOSE,PREFORMED
4261-1385
4810-01-512-0345INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21385-001
5945-01-534-7211INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
62434

Frequently Asked Questions

What is NSN 5999-00-499-6275?

NSN 5999-00-499-6275 is a Contact Assembly,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 5999-00-499-6275?

NSN 5999-00-499-6275 has 10 cross-referenced part numbers: 82827W1ITEM37 (Eaton Corp Opns & Technical Center), 85193W1ITEM3E (Eaton Corp Opns & Technical Center), 81730W1ITEM40 (Eaton Corp Opns & Technical Center), 83039W1ITEM10 (Eaton Corp Opns & Technical Center), 85707W1ITEM18 (Eaton Corp Opns & Technical Center) and 5 more.

What NSN replaces 5999-00-499-6275?

There are 6 known substitutes for 5999-00-499-6275: 5325-00-256-2846, 5305-01-149-5393, 5330-01-192-1701 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-385?

Key specifications for 21-385: Precious Material: SILVER; Precious Material and Location: CONTACTS SILVER; Overall Width: 1.000 INCHES NOMINAL IN; Contact Item Name Assigned by Government Agency: CONTACT ASSY. 24 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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