PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8F0908Washer,flat

Caterpillar Inc Div Caterpillar Defense · NSN 5310-00-275-6665 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-275-6665 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-275-6665. Primary manufacturer part number: 8F0908.
Features
  • Washer,flat — FSC 5310
  • Peripheral Shape Style: ROUND
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Hole Diameter: 0.316 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
  • Overall Diameter: 0.562 INCHES NOMINAL IN
  • Thickness: 0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-275-6665, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-275-6665
Primary Part Number8F0908
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusCANCELLED
Peripheral Shape StyleROUND
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OVERALL
Hole Diameter0.316 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
Overall Diameter0.562 INCHES NOMINAL IN
Thickness0.029 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5133-00-189-9303 INTERCHANGEABLE
Drill,twist
5133-00-228-1387 INTERCHANGEABLE
Drill,twist
2540-01-541-9228200158 INTERCHANGEABLE
Belt,vehicular Safety
Amsafe, Inc. Div Amsafe
2530-01-589-32603713099C92 INTERCHANGEABLE
Wheel,disc
Nd Defense Llc
Cross-Reference Index
Part NumberManufacturer
WA1518 United Technologies Corp Electro Systems Inc (USA)
WA1518 Ambac International Corporation Div Ambac International (USA)
200158 Lewmar Ltd (GBR)
8F0908 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
FFW92A Federal Specifications Promulgated by General Services Administration Washington DC (USA)
8F908 Caterpillar Inc Div Caterpillar Defense (USA)
200158 Simpson-Lawrence Ltd Johnson and Evi Rude Outboard Motors (GBR)
WA1342 PRIMARY United Technologies Corp Electro Systems Inc (USA)
WA1342 Ambac International Corporation Div Ambac International (USA)
200158 Outboard Marine Corp (USA)
200158 PRIMARY Brp Us Inc (USA)
Related Parts
5133-00-189-9303INTERCHANGEABLE
DRILL,TWIST
5133-00-228-1387INTERCHANGEABLE
DRILL,TWIST
2540-01-541-9228INTERCHANGEABLE
BELT,VEHICULAR SAFETY
200158
2530-01-589-3260INTERCHANGEABLE
WHEEL,DISC
3713099C92

Frequently Asked Questions

What is NSN 5310-00-275-6665?

NSN 5310-00-275-6665 is a Washer,flat, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-275-6665?

NSN 5310-00-275-6665 has 11 cross-referenced part numbers: WA1518 (United Technologies Corp Electro Systems Inc), WA1518 (Ambac International Corporation Div Ambac International), 200158 (Lewmar Ltd), 8F0908 (Caterpillar Inc Div Caterpillar Defense), FFW92A (Federal Specifications Promulgated by General Services Administration Washington DC) and 6 more.

What NSN replaces 5310-00-275-6665?

There are 4 known substitutes for 5310-00-275-6665: 5133-00-189-9303, 5133-00-228-1387, 2540-01-541-9228 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8F0908?

Key specifications for 8F0908: Peripheral Shape Style: ROUND; Material: STEEL OVERALL; Surface Treatment: CADMIUM OVERALL; Hole Diameter: 0.316 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-275-6665 still in active supply?

NSN 5310-00-275-6665 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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