PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3871Washer,key

New Haven Mfg Corp · NSN 5310-00-813-6362 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-813-6362 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-813-6362. Primary manufacturer part number: 3871.
Features
  • Washer,key — FSC 5310
  • Outside Diameter: 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
  • Material Document and Classification: QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Hole Diameter: 0.3075 INCHES MINIMUM AND 0.3175 INCHES MAXIMUM IN
  • Distance From Centerline to Top of Internal Key: 0.120 INCHES NOMINAL IN
  • Material: COPPER ALLOY OVERALL
  • Internal Key Quantity: 1
  • Material Thickness: 0.0263 INCHES MINIMUM AND 0.0363 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-00-813-6362, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is New Haven Mfg Corp. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-813-6362
Primary Part Number3871
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNew Haven Mfg Corp
StatusCANCELLED
Outside Diameter0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
Material Document and ClassificationQQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Hole Diameter0.3075 INCHES MINIMUM AND 0.3175 INCHES MAXIMUM IN
Distance From Centerline to Top of Internal Key0.120 INCHES NOMINAL IN
MaterialCOPPER ALLOY OVERALL
Internal Key Quantity1
Material Thickness0.0263 INCHES MINIMUM AND 0.0363 INCHES MAXIMUM IN
Internal Straight Key Width0.060 INCHES NOMINAL IN
Style DesignatorKEY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5360-00-200-6358 INTERCHANGEABLE
Spring,helical,compression
5935-00-928-17909460 INTERCHANGEABLE
Connector,receptacle,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5975-01-064-58193871 INTERCHANGEABLE
Bushing,electrical Conduit
Abb Installation Products Inc
5950-01-322-36413871 INTERCHANGEABLE
Transformer,power
A M I/ Coast Magnetics Inc. Dba Coast Magnetics
6850-01-386-8428 INTERCHANGEABLE
Cleaning Compound,solvent
5935-01-431-92913871 INTERCHANGEABLE
Nut,bushing Retainer,electrical
Abb Installation Products Inc
1940-01-481-17333871 INTERCHANGEABLE
Floor Secur.w Buckl
Zodiac of North America, Inc. Dba Zodiac of North America Inc Div Milpro
5360-01-625-20543871 INTERCHANGEABLE
Spring,helical,compression
Matthew Warren, Inc. Dba Century Spring Corp. Div Century Spring Corp.
Cross-Reference Index
Part NumberManufacturer
3871 New Haven Mfg Corp (USA)
03871 New Haven Mfg Corp (USA)
Related Parts
5360-00-200-6358INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5935-00-928-1790INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
9460
5975-01-064-5819INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUIT
3871
5950-01-322-3641INTERCHANGEABLE
TRANSFORMER,POWER
3871
6850-01-386-8428INTERCHANGEABLE
CLEANING COMPOUND,SOLVENT
5935-01-431-9291INTERCHANGEABLE
NUT,BUSHING RETAINER,ELECTRICAL
3871
1940-01-481-1733INTERCHANGEABLE
FLOOR SECUR.W BUCKL
3871
5360-01-625-2054INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
3871

Frequently Asked Questions

What is NSN 5310-00-813-6362?

NSN 5310-00-813-6362 is a Washer,key, manufactured by New Haven Mfg Corp, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-813-6362?

NSN 5310-00-813-6362 has 2 cross-referenced part numbers: 3871 (New Haven Mfg Corp), 03871 (New Haven Mfg Corp).

What NSN replaces 5310-00-813-6362?

There are 8 known substitutes for 5310-00-813-6362: 5360-00-200-6358, 5935-00-928-1790, 5975-01-064-5819 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3871?

Key specifications for 3871: Outside Diameter: 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN; Material Document and Classification: QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Hole Diameter: 0.3075 INCHES MINIMUM AND 0.3175 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 0.120 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-813-6362 still in active supply?

NSN 5310-00-813-6362 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com