PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

QA8USWasher,flat

Garwood/feller Inc Garwood Winch Div · NSN 5310-00-682-5585 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-682-5585 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-682-5585. Primary manufacturer part number: QA8US.
Features
  • Washer,flat — FSC 5310
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material: STEEL OVERALL
  • Hole Diameter: 1.391 INCHES NOMINAL IN
  • Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM
  • Thickness: 0.125 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Overall Diameter: 2.500 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 5310-00-682-5585, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Garwood/feller Inc Garwood Winch Div. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references 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: Active.

Technical Specifications
ParameterValue
NSN5310-00-682-5585
Primary Part NumberQA8US
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerGarwood/feller Inc Garwood Winch Div
StatusACTIVE
Cross-Sectional Shape StyleRECTANGULAR
MaterialSTEEL OVERALL
Hole Diameter1.391 INCHES NOMINAL IN
Hardness Rating47.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM
Thickness0.125 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Overall Diameter2.500 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Features ProvidedCASEHARDENED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5120-00-031-674432101 INTERCHANGEABLE
Wrench,socket
Renk America Llc Div Renk America
5999-01-369-273780771-1 INTERCHANGEABLE
Heat Sink,electrical-Electronic
L3harris Technologies, Inc. Div Space and Airborne Systems
Cross-Reference Index
Part NumberManufacturer
QA8US PRIMARY Garwood/feller Inc Garwood Winch Div (USA)
807711 PRIMARY Garwood/feller Inc Garwood Winch Div (USA)
Related Parts
5120-00-031-6744INTERCHANGEABLE
WRENCH,SOCKET
32101
5999-01-369-2737INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
80771-1

Frequently Asked Questions

What is NSN 5310-00-682-5585?

NSN 5310-00-682-5585 is a Washer,flat, manufactured by Garwood/feller Inc Garwood Winch Div, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-682-5585?

NSN 5310-00-682-5585 has 2 cross-referenced part numbers: QA8US (Garwood/feller Inc Garwood Winch Div), 807711 (Garwood/feller Inc Garwood Winch Div).

What NSN replaces 5310-00-682-5585?

There are 2 known substitutes for 5310-00-682-5585: 5120-00-031-6744, 5999-01-369-2737. Verify interchangeability with system specifications before substitution.

What are the specifications of QA8US?

Key specifications for QA8US: Cross-Sectional Shape Style: RECTANGULAR; Material: STEEL OVERALL; Hole Diameter: 1.391 INCHES NOMINAL IN; Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com