PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FFW92TYPEAGRADE2CLASSEWasher,flat

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5310-00-274-7840 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-274-7840 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-274-7840. Primary manufacturer part number: FFW92TYPEAGRADE2CLASSE.
Features
  • Washer,flat — FSC 5310
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material Document and Classification: QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: COPPER ALLOY 11 OVERALL
  • Thickness: 0.03125 INCHES NOMINAL IN
  • Hole Diameter: 0.625 INCHES NOMINAL IN
  • Nondefinitive Spec/std Data: A TYPE AND 2 GRADE AND E CLASS
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy 11 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-274-7840, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-274-7840
Primary Part NumberFFW92TYPEAGRADE2CLASSE
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Material Document and ClassificationQQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialCOPPER ALLOY 11 OVERALL
Thickness0.03125 INCHES NOMINAL IN
Hole Diameter0.625 INCHES NOMINAL IN
Nondefinitive Spec/std DataA TYPE AND 2 GRADE AND E CLASS
Departure From Cited DesignatorAS MODIFIED BY ID AND AS MODIFIED BY THK
Center Hole Shape StyleROUND
Overall Diameter0.875 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-167-07021-4X7-8X364 INTERCHANGEABLE
Washer,flat
Stewart Avionics Inc
5310-00-199-4587 INTERCHANGEABLE
Washer,flat
5310-00-205-9345 INTERCHANGEABLE
Washer,flat
5310-00-205-9928 INTERCHANGEABLE
Washer,flat
5310-00-205-9931 INTERCHANGEABLE
Washer,flat
5310-00-253-3207MS15795-442 INTERCHANGEABLE
Washer,flat
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5310-00-264-06213155 INTERCHANGEABLE
Washer,flat
King Engineering Corporation Dba King-Gage Systems
5310-00-377-0251111822 INTERCHANGEABLE
Washer,flat
Lockheed Martin Corporation Div Rms - Mitchel Field
5310-00-582-5598 INTERCHANGEABLE
Washer,flat
5310-00-582-9838 INTERCHANGEABLE
Washer,flat
Cross-Reference Index
Part NumberManufacturer
FFW92TYPEAGRADE2CLASSE Federal Specifications Promulgated by General Services Administration Washington DC (USA)
52648 Kleinschmidt Inc (USA)
Related Parts
5310-00-167-0702INTERCHANGEABLE
WASHER,FLAT
1-4X7-8X364
5310-00-199-4587INTERCHANGEABLE
WASHER,FLAT
5310-00-205-9345INTERCHANGEABLE
WASHER,FLAT
5310-00-205-9928INTERCHANGEABLE
WASHER,FLAT
5310-00-205-9931INTERCHANGEABLE
WASHER,FLAT
5310-00-253-3207INTERCHANGEABLE
WASHER,FLAT
MS15795-442
5310-00-264-0621INTERCHANGEABLE
WASHER,FLAT
3155
5310-00-377-0251INTERCHANGEABLE
WASHER,FLAT
111822
5310-00-582-5598INTERCHANGEABLE
WASHER,FLAT
5310-00-582-9838INTERCHANGEABLE
WASHER,FLAT
5310-00-639-8071INTERCHANGEABLE
WASHER,FLAT
5910-00-751-8980INTERCHANGEABLE
CAPACITOR
52648

Frequently Asked Questions

What is NSN 5310-00-274-7840?

NSN 5310-00-274-7840 is a Washer,flat, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-274-7840?

NSN 5310-00-274-7840 has 2 cross-referenced part numbers: FFW92TYPEAGRADE2CLASSE (Federal Specifications Promulgated by General Services Administration Washington DC), 52648 (Kleinschmidt Inc).

What NSN replaces 5310-00-274-7840?

There are 12 known substitutes for 5310-00-274-7840: 5310-00-167-0702, 5310-00-199-4587, 5310-00-205-9345 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FFW92TYPEAGRADE2CLASSE?

Key specifications for FFW92TYPEAGRADE2CLASSE: Peripheral Shape Style: ROUND; Cross-Sectional Shape Style: RECTANGULAR; Material Document and Classification: QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: COPPER ALLOY 11 OVERALL. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-274-7840 still in active supply?

NSN 5310-00-274-7840 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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