PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51-448PC357Washer,flat

Bath Iron Works Corporation · NSN 5310-00-099-8901 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-099-8901 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-099-8901. Primary manufacturer part number: 51-448PC357.
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 0.625 INCHES NOMINAL IN
  • Minimum Tensile Strength: 1500 POUNDS PER SQUARE INCH LBS
  • Hardness Rating: 45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM
  • Material Document and Classification: 417,GR RS515F2 MIL STD SINGLE MATERIAL RESPONSE OVERALL
  • Peripheral Shape Style: ROUND
  • Thickness: 0.062 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Rubber Synthetic Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-099-8901, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bath Iron Works Corporation. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-099-8901
Primary Part Number51-448PC357
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerBath Iron Works Corporation
StatusACTIVE
Overall Diameter0.625 INCHES NOMINAL IN
Minimum Tensile Strength1500 POUNDS PER SQUARE INCH LBS
Hardness Rating45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM
Material Document and Classification417,GR RS515F2 MIL STD SINGLE MATERIAL RESPONSE OVERALL
Peripheral Shape StyleROUND
Thickness0.062 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.312 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-156-1785F30 INTERCHANGEABLE
Bearing,ball,thrust
Abc Acquisition Company Dba Aetna Bearing Company
Cross-Reference Index
Part NumberManufacturer
M36530-357 Bath Iron Works Corporation (USA)
GT30 Bath Iron Works Corporation (USA)
M36530ALT3PC357 Bath Iron Works Corporation (USA)
51-448PC357 PRIMARY Bath Iron Works Corporation (USA)
Related Parts
3110-00-156-1785INTERCHANGEABLE
BEARING,BALL,THRUST
F30

Frequently Asked Questions

What is NSN 5310-00-099-8901?

NSN 5310-00-099-8901 is a Washer,flat, manufactured by Bath Iron Works Corporation, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-099-8901?

NSN 5310-00-099-8901 has 4 cross-referenced part numbers: M36530-357 (Bath Iron Works Corporation), GT30 (Bath Iron Works Corporation), M36530ALT3PC357 (Bath Iron Works Corporation), 51-448PC357 (Bath Iron Works Corporation).

What NSN replaces 5310-00-099-8901?

There is 1 known substitute for 5310-00-099-8901: 3110-00-156-1785. Verify interchangeability with system specifications before substitution.

What are the specifications of 51-448PC357?

Key specifications for 51-448PC357: Overall Diameter: 0.625 INCHES NOMINAL IN; Minimum Tensile Strength: 1500 POUNDS PER SQUARE INCH LBS; Hardness Rating: 45.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM; Material Document and Classification: 417,GR RS515F2 MIL STD SINGLE MATERIAL RESPONSE OVERALL. 10 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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