PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

508-3Nut,plain,hexagon

Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation · NSN 5310-01-399-2661 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-399-2661 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-399-2661. Primary manufacturer part number: 508-3.
Features
  • Nut,plain,hexagon — FSC 5310
  • 3 verified cross-references
  • Primary manufacturer: Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-399-2661, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameNut,plain,hexagon
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersWinchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation (CAGE 95238); Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (CAGE 81413); Winchester Interconnect Corporation (CAGE 91836)
Technical Specifications
ParameterValue
NSN5310-01-399-2661
Primary Part Number508-3
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerWinchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-790-5601508-3 INTERCHANGEABLE
Setscrew
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5315-00-830-2504070320000 INTERCHANGEABLE
Pin,rebound Slide
Smith & Wesson Sales Company
2510-00-872-9289508-3 INTERCHANGEABLE
Shock Absorber,direct Action
General Motors Llc Dba General Motors Llc
5950-00-893-5078 INTERCHANGEABLE
Reactor
5330-01-133-84943027983 INTERCHANGEABLE
Gasket
Navistar Intl Corp Truck Br Ohio Plant
4140-01-190-5493383-7644 INTERCHANGEABLE
Impeller,fan,axial
Caterpillar Inc Div Caterpillar Defense
5365-01-200-1293 INTERCHANGEABLE
Bushing,nonmetallic
8105-01-217-7594210-1115 INTERCHANGEABLE
Bag,plastic
Desco Industries Inc
4730-01-307-36655083-G501 INTERCHANGEABLE
Coupling Half,quick Disconnect
Howell Laboratories Inc Dba Howell Laboratories Inc
5340-01-325-1589927599 INTERCHANGEABLE
Handle,extension
Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division
Cross-Reference Index
Part NumberManufacturer
508-3 PRIMARY Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation (USA)
330844-001 Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
508-3 Winchester Interconnect Corporation (USA)
Related Parts
5305-00-790-5601INTERCHANGEABLE
SETSCREW
508-3
5315-00-830-2504INTERCHANGEABLE
PIN,REBOUND SLIDE
070320000
2510-00-872-9289INTERCHANGEABLE
SHOCK ABSORBER,DIRECT ACTION
508-3
5950-00-893-5078INTERCHANGEABLE
REACTOR
5330-01-133-8494INTERCHANGEABLE
GASKET
3027983
4140-01-190-5493INTERCHANGEABLE
IMPELLER,FAN,AXIAL
383-7644
5365-01-200-1293INTERCHANGEABLE
BUSHING,NONMETALLIC
8105-01-217-7594INTERCHANGEABLE
BAG,PLASTIC
210-1115
4730-01-307-3665INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
5083-G501
5340-01-325-1589INTERCHANGEABLE
HANDLE,EXTENSION
927599
5940-01-424-8996INTERCHANGEABLE
TERMINAL,QUICK DISCONNECT
29699-1
5310-01-641-3773INTERCHANGEABLE
WASHER,FLAT
5083

Frequently Asked Questions

What is NSN 5310-01-399-2661?

NSN 5310-01-399-2661 is a Nut,plain,hexagon, manufactured by Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-399-2661?

NSN 5310-01-399-2661 has 3 cross-referenced part numbers: 508-3 (Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation), 330844-001 (Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems), 508-3 (Winchester Interconnect Corporation).

What NSN replaces 5310-01-399-2661?

There are 12 known substitutes for 5310-01-399-2661: 5305-00-790-5601, 5315-00-830-2504, 2510-00-872-9289 and 9 more. Verify interchangeability with system specifications before substitution.

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