PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FFW92TYPEAGRADEICLASSAWasher,flat

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5310-00-187-5349 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-187-5349 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-187-5349. Primary manufacturer part number: FFW92TYPEAGRADEICLASSA.
Features
  • Washer,flat — FSC 5310
  • Peripheral Shape Style: ROUND
  • Hole Diameter: 0.677 INCHES MINIMUM AND 0.697 INCHES MAXIMUM IN
  • Nondefinitive Spec/std Data: A TYPE AND 1 GRADE AND A CLASS
  • Material: STEEL OVERALL
  • Thickness: 0.108 INCHES MINIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 1.750 INCHES NOMINAL IN
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 5310-00-187-5349, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 9 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-187-5349
Primary Part NumberFFW92TYPEAGRADEICLASSA
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Peripheral Shape StyleROUND
Hole Diameter0.677 INCHES MINIMUM AND 0.697 INCHES MAXIMUM IN
Nondefinitive Spec/std DataA TYPE AND 1 GRADE AND A CLASS
MaterialSTEEL OVERALL
Thickness0.108 INCHES MINIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter1.750 INCHES NOMINAL IN
Material Document and ClassificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-982-6562 INTERCHANGEABLE
Washer,flat
Cross-Reference Index
Part NumberManufacturer
FFW92TYPEAGRADEICLASSA Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5310-00-982-6562INTERCHANGEABLE
WASHER,FLAT

Frequently Asked Questions

What is NSN 5310-00-187-5349?

NSN 5310-00-187-5349 is a Washer,flat, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-187-5349?

NSN 5310-00-187-5349 has 1 cross-referenced part number: FFW92TYPEAGRADEICLASSA (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5310-00-187-5349?

There is 1 known substitute for 5310-00-187-5349: 5310-00-982-6562. Verify interchangeability with system specifications before substitution.

What are the specifications of FFW92TYPEAGRADEICLASSA?

Key specifications for FFW92TYPEAGRADEICLASSA: Peripheral Shape Style: ROUND; Hole Diameter: 0.677 INCHES MINIMUM AND 0.697 INCHES MAXIMUM IN; Nondefinitive Spec/std Data: A TYPE AND 1 GRADE AND A CLASS; Material: STEEL OVERALL. 9 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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