PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FFW92Washer,flat

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5310-00-639-3859 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-639-3859 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-639-3859. Primary manufacturer part number: FFW92.
Features
  • Washer,flat — FSC 5310
  • 2 verified cross-references
  • Primary manufacturer: Federal Specifications Promulgated by General Services Administration Washington DC
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-639-3859, 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. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameWasher,flat
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersFederal Specifications Promulgated by General Services Administration Washington DC (CAGE 81348); The Charles Machine Works Inc Dba Ditch Witch (CAGE 02246)
Technical Specifications
ParameterValue
NSN5310-00-639-3859
Primary Part NumberFFW92
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5940-00-176-720810-542-2 INTERCHANGEABLE
Terminal,feedthru
Concord Electronics, Inc.
4730-00-231-5605 INTERCHANGEABLE
Elbow,pipe
4140-00-635-0909105422 INTERCHANGEABLE
Impeller,fan,axial
Honeywell International, Inc Div Aerospace-Tucson
5310-01-551-7441 INTERCHANGEABLE
Washer,flat
5340-01-586-3574105422 INTERCHANGEABLE
Standoff,threaded,spacing
Astronautics Corporation of America
5998-01-689-9020105422 INTERCHANGEABLE
Circuit Card Assembly
Eventide, Inc
Cross-Reference Index
Part NumberManufacturer
FFW92 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
105-422 The Charles Machine Works Inc Dba Ditch Witch (USA)
Related Parts
5940-00-176-7208INTERCHANGEABLE
TERMINAL,FEEDTHRU
10-542-2
4730-00-231-5605INTERCHANGEABLE
ELBOW,PIPE
4140-00-635-0909INTERCHANGEABLE
IMPELLER,FAN,AXIAL
105422
5310-01-551-7441INTERCHANGEABLE
WASHER,FLAT
5340-01-586-3574INTERCHANGEABLE
STANDOFF,THREADED,SPACING
105422
5998-01-689-9020INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
105422

Frequently Asked Questions

What is NSN 5310-00-639-3859?

NSN 5310-00-639-3859 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 5310-00-639-3859?

NSN 5310-00-639-3859 has 2 cross-referenced part numbers: FFW92 (Federal Specifications Promulgated by General Services Administration Washington DC), 105-422 (The Charles Machine Works Inc Dba Ditch Witch).

What NSN replaces 5310-00-639-3859?

There are 6 known substitutes for 5310-00-639-3859: 5940-00-176-7208, 4730-00-231-5605, 4140-00-635-0909 and 3 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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