PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-174-6Contact,electrical

Eaton Corp Opns & Technical Center · NSN 5999-00-031-6130 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-00-031-6130 — this item is cataloged by the U.S. Government under National Stock Number 5999-00-031-6130. Primary manufacturer part number: 21-174-6.
Features
  • Contact,electrical — FSC 5999
  • Style Designator: SOCKET CONTACT
  • Precious Material and Weight: 0.005 SILVER GRAINS, TROY
  • Material: COPPER ALLOY BODY
  • Precious Material: SILVER
  • Precious Material and Location: BODY AND CONTACT SURFACES SILVER
  • Current Rating in Amps: 78.6
  • Surface Treatment: SILVER CONTACT
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Contact,electrical, cataloged under National Stock Number 5999-00-031-6130, 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 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-00-031-6130
Primary Part Number21-174-6
Item NameContact,electrical
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerEaton Corp Opns & Technical Center
StatusACTIVE
Style DesignatorSOCKET CONTACT
Precious Material and Weight0.005 SILVER GRAINS, TROY
MaterialCOPPER ALLOY BODY
Precious MaterialSILVER
Precious Material and LocationBODY AND CONTACT SURFACES SILVER
Current Rating in Amps78.6
Surface TreatmentSILVER CONTACT
Mounting MethodUNTHREADED HOLE(S)
Voltage Rating in Volts440.0 AC
MaterialCOPPER ALLOY CONTACT
Mounting Facility Quantity1
Terminal Type and Quantity1 TAB, SOLDER LUG AXIALLY AT ONE END
Unthreaded Mounting Hole Diameter0.201 INCHES NOMINAL IN
Surface TreatmentSILVER BODY
Style DesignatorSOCKET CONTACT
Precious Material and Weight0.005 SILVER GRAINS, TROY
MaterialCOPPER ALLOY BODY
Precious MaterialSILVER
Precious Material and LocationBODY AND CONTACT SURFACES SILVER
Current Rating in Amps78.6
Surface TreatmentSILVER CONTACT
Mounting MethodUNTHREADED HOLE(S)
Voltage Rating in Volts440.0 AC
MaterialCOPPER ALLOY CONTACT
Mounting Facility Quantity1
Terminal Type and Quantity1 TAB, SOLDER LUG AXIALLY AT ONE END
Unthreaded Mounting Hole Diameter0.201 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight0.0700 lbs
Cube0.0030 cu ft
Verified Substitutes 2
4730-01-288-087262424 INTERCHANGEABLE
Trap,steam
Spirax Sarco Inc Dba Spirax Sarco
1650-01-606-5962624-24 INTERCHANGEABLE
Firesleeve,size 24
General Atomics Aeronautical Systems, Inc.
Cross-Reference Index
Part NumberManufacturer
21-174-6 PRIMARY Eaton Corp Opns & Technical Center (USA)
A21-174-6 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
A21-174-6 Eaton Corp Opns & Technical Center (USA)
422178PC5 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
62424 Almon Johnson Ltd (USA)
Related Parts
4730-01-288-0872INTERCHANGEABLE
TRAP,STEAM
62424
1650-01-606-5962INTERCHANGEABLE
FIRESLEEVE,SIZE 24
624-24

Frequently Asked Questions

What is NSN 5999-00-031-6130?

NSN 5999-00-031-6130 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 5999-00-031-6130?

NSN 5999-00-031-6130 has 5 cross-referenced part numbers: 21-174-6 (Eaton Corp Opns & Technical Center), A21-174-6 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), A21-174-6 (Eaton Corp Opns & Technical Center), 422178PC5 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 62424 (Almon Johnson Ltd).

What NSN replaces 5999-00-031-6130?

There are 2 known substitutes for 5999-00-031-6130: 4730-01-288-0872, 1650-01-606-5962. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-174-6?

Key specifications for 21-174-6: Style Designator: SOCKET CONTACT; Precious Material and Weight: 0.005 SILVER GRAINS, TROY; Material: COPPER ALLOY BODY; Precious Material: SILVER. 30 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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