PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

503371Washer,flat

Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. · NSN 5310-00-291-2951 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-291-2951 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-291-2951. Primary manufacturer part number: 503371.
Features
  • Washer,flat — FSC 5310
  • Center Hole Shape Style: ROUND
  • Material Document and Classification: C-F-206,TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Peripheral Shape Style: ROUND
  • Overall Diameter: 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM IN
  • Material: WOOL COMP 16R3 OVERALL
  • Minimum Tensile Strength: 400 POUNDS PER SQUARE INCH LBS
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Wool Comp 16r3 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-291-2951, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-291-2951
Primary Part Number503371
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
StatusACTIVE
Center Hole Shape StyleROUND
Material Document and ClassificationC-F-206,TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
Overall Diameter1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM IN
MaterialWOOL COMP 16R3 OVERALL
Minimum Tensile Strength400 POUNDS PER SQUARE INCH LBS
Thickness0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
Hole Diameter1.209 INCHES MINIMUM AND 1.229 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5355-00-149-1415 INTERCHANGEABLE
Dial
6515-00-333-240030-1191 INTERCHANGEABLE
Forceps,dressing
Aspen Surgical Products, Inc.
5930-00-501-1002 INTERCHANGEABLE
Switch,rotary
5330-00-599-1301 INTERCHANGEABLE
Felt,mechanical,preformed
5330-00-685-5538 INTERCHANGEABLE
Felt,mechanical,preformed
3110-01-076-7490503371 INTERCHANGEABLE
Bearing,needle
Huck International, Inc. Div Kingston Operations
Cross-Reference Index
Part NumberManufacturer
503371 Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
503371 Scott Huber Essick a Co of Figgie International Inc (USA)
C-F-206 TYPE 1 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
503371 Suntec Industries Inc Del Dba Suntec (USA)
503371 Sundstrand Corp Sundstrand Hydraulics Div (USA)
503371 Hamilton Sundstrand Corporation (USA)
Related Parts
5355-00-149-1415INTERCHANGEABLE
DIAL
6515-00-333-2400INTERCHANGEABLE
FORCEPS,DRESSING
30-1191
5930-00-501-1002INTERCHANGEABLE
SWITCH,ROTARY
5330-00-599-1301INTERCHANGEABLE
FELT,MECHANICAL,PREFORMED
5330-00-685-5538INTERCHANGEABLE
FELT,MECHANICAL,PREFORMED
3110-01-076-7490INTERCHANGEABLE
BEARING,NEEDLE
503371

Frequently Asked Questions

What is NSN 5310-00-291-2951?

NSN 5310-00-291-2951 is a Washer,flat, manufactured by Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-291-2951?

NSN 5310-00-291-2951 has 6 cross-referenced part numbers: 503371 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.), 503371 (Scott Huber Essick a Co of Figgie International Inc), C-F-206 TYPE 1 (Federal Specifications Promulgated by General Services Administration Washington DC), 503371 (Suntec Industries Inc Del Dba Suntec), 503371 (Sundstrand Corp Sundstrand Hydraulics Div) and 1 more.

What NSN replaces 5310-00-291-2951?

There are 6 known substitutes for 5310-00-291-2951: 5355-00-149-1415, 6515-00-333-2400, 5930-00-501-1002 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 503371?

Key specifications for 503371: Center Hole Shape Style: ROUND; Material Document and Classification: C-F-206,TYPE 1 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 9 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