PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5S3-1Washer,split

Howmet Global Fastening Systems Inc Div Camloc Products · NSN 5310-00-143-6491 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-143-6491 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-143-6491. Primary manufacturer part number: 5S3-1.
Features
  • Washer,split — FSC 5310
  • Surface Treatment: CADMIUM OVERALL
  • Outside Diameter: 0.264 INCHES MINIMUM AND 0.271 INCHES MAXIMUM IN
  • Distance Across Split Opening: 0.025 INCHES NOMINAL IN
  • Hole Diameter: 0.149 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
  • Heat Treatment: SPRING TEMPER
  • Material Thickness: 0.012 INCHES MINIMUM AND 0.016 INCHES MAXIMUM IN
  • Style Designator: SPLIT
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,split, cataloged under National Stock Number 5310-00-143-6491, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Howmet Global Fastening Systems Inc Div Camloc Products. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-143-6491
Primary Part Number5S3-1
Item NameWasher,split
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHowmet Global Fastening Systems Inc Div Camloc Products
StatusACTIVE
Surface TreatmentCADMIUM OVERALL
Outside Diameter0.264 INCHES MINIMUM AND 0.271 INCHES MAXIMUM IN
Distance Across Split Opening0.025 INCHES NOMINAL IN
Hole Diameter0.149 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
Heat TreatmentSPRING TEMPER
Material Thickness0.012 INCHES MINIMUM AND 0.016 INCHES MAXIMUM IN
Style DesignatorSPLIT
Surface Treatment Document and ClassificationQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5330-00-138-4561181W27 INTERCHANGEABLE
Seal,inside,upper
Cone Drive Operations Inc
5330-00-337-54675531 INTERCHANGEABLE
Seal,oil,reverse Tr
Eaton Corp Transmission Div
5310-00-530-996358A122A1678 INTERCHANGEABLE
Washer,split
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-830-79735531 INTERCHANGEABLE
Nut,self-Locking,spline
Goodrich Aerospace Canada Ltd
2995-00-969-1053 INTERCHANGEABLE
Plate,nutating
5930-01-094-8115SM-A-802900-1 INTERCHANGEABLE
Switch,flow
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6150-01-316-2267 INTERCHANGEABLE
Bus,conductor
4320-01-348-1565CW7299 PIECE 5531 INTERCHANGEABLE
Rotor,pump
Megator Corp
5330-01-668-37315531 INTERCHANGEABLE
Gasket
R.w. Fernstrum & Company
5985-01-705-4696553-1 INTERCHANGEABLE
Seal,waveguide
Applied Systems Engineering Inc
Cross-Reference Index
Part NumberManufacturer
5310001436491 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
553-1 Howmet Global Fastening Systems Inc Div Camloc Products (USA)
10313530 Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA)
5310001436491 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
10313530 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
5S3-1 PRIMARY Howmet Global Fastening Systems Inc Div Camloc Products (USA)
5S3-1 Leonardo Spa Aeronautics Division - Pomigliano D'arco Site (ITA)
Related Parts
5330-00-138-4561INTERCHANGEABLE
SEAL,INSIDE,UPPER
181W27
5330-00-337-5467INTERCHANGEABLE
SEAL,OIL,REVERSE TR
5531
5310-00-530-9963INTERCHANGEABLE
WASHER,SPLIT
58A122A1678
5310-00-830-7973INTERCHANGEABLE
NUT,SELF-LOCKING,SPLINE
5531
2995-00-969-1053INTERCHANGEABLE
PLATE,NUTATING
5930-01-094-8115INTERCHANGEABLE
SWITCH,FLOW
SM-A-802900-1
6150-01-316-2267INTERCHANGEABLE
BUS,CONDUCTOR
4320-01-348-1565INTERCHANGEABLE
ROTOR,PUMP
CW7299 PIECE 5531
5330-01-668-3731INTERCHANGEABLE
GASKET
5531
5985-01-705-4696INTERCHANGEABLE
SEAL,WAVEGUIDE
553-1

Frequently Asked Questions

What is NSN 5310-00-143-6491?

NSN 5310-00-143-6491 is a Washer,split, manufactured by Howmet Global Fastening Systems Inc Div Camloc Products, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-143-6491?

NSN 5310-00-143-6491 has 7 cross-referenced part numbers: 5310001436491 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee), 553-1 (Howmet Global Fastening Systems Inc Div Camloc Products), 10313530 (Army, United States Department of the Dba Rock Island Arsenal Jmtc), 5310001436491 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), 10313530 (U S Army Tank Automotive Command Amsta-Im-Mm) and 2 more.

What NSN replaces 5310-00-143-6491?

There are 10 known substitutes for 5310-00-143-6491: 5330-00-138-4561, 5330-00-337-5467, 5310-00-530-9963 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5S3-1?

Key specifications for 5S3-1: Surface Treatment: CADMIUM OVERALL; Outside Diameter: 0.264 INCHES MINIMUM AND 0.271 INCHES MAXIMUM IN; Distance Across Split Opening: 0.025 INCHES NOMINAL IN; Hole Diameter: 0.149 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN. 8 total characteristics are documented in the Federal Logistics Information System.

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