PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AA265Washer,flat

Gast Mfg Corp · NSN 5310-00-202-4181 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-202-4181 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-202-4181. Primary manufacturer part number: AA265.
Features
  • Washer,flat — FSC 5310
  • Material: RUBBER SYNTHETIC OVERALL
  • Material Document and Classification: 417,GR SB720A1B1E3F1 MIL STD SINGLE MATERIAL RESPONSE OVERALL
  • Center Hole Shape Style: ROUND
  • Hole Diameter: 0.375 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.563 INCHES NOMINAL IN
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 5310-00-202-4181, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Gast Mfg Corp. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-202-4181
Primary Part NumberAA265
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerGast Mfg Corp
StatusCANCELLED
MaterialRUBBER SYNTHETIC OVERALL
Material Document and Classification417,GR SB720A1B1E3F1 MIL STD SINGLE MATERIAL RESPONSE OVERALL
Center Hole Shape StyleROUND
Hole Diameter0.375 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.563 INCHES NOMINAL IN
Hardness Rating65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM
Minimum Tensile Strength2000 POUNDS PER SQUARE INCH LBS
Thickness0.063 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
7920-00-263-85282000/260 INTERCHANGEABLE
Mopping Outfit,floor
Impact Products, Llc
7920-00-579-8484 INTERCHANGEABLE
Mopping Outfit,floor
Cross-Reference Index
Part NumberManufacturer
AA265 PRIMARY Gast Mfg Corp (USA)
Related Parts
7920-00-263-8528INTERCHANGEABLE
MOPPING OUTFIT,FLOOR
2000/260
7920-00-579-8484INTERCHANGEABLE
MOPPING OUTFIT,FLOOR

Frequently Asked Questions

What is NSN 5310-00-202-4181?

NSN 5310-00-202-4181 is a Washer,flat, manufactured by Gast Mfg Corp, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-202-4181?

NSN 5310-00-202-4181 has 1 cross-referenced part number: AA265 (Gast Mfg Corp).

What NSN replaces 5310-00-202-4181?

There are 2 known substitutes for 5310-00-202-4181: 7920-00-263-8528, 7920-00-579-8484. Verify interchangeability with system specifications before substitution.

What are the specifications of AA265?

Key specifications for AA265: Material: RUBBER SYNTHETIC OVERALL; Material Document and Classification: 417,GR SB720A1B1E3F1 MIL STD SINGLE MATERIAL RESPONSE OVERALL; Center Hole Shape Style: ROUND; Hole Diameter: 0.375 INCHES NOMINAL IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-202-4181 still in active supply?

NSN 5310-00-202-4181 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.
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