PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

218322Washer,flat

General Motors Corp · NSN 5310-00-021-8322 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-021-8322 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-021-8322. Primary manufacturer part number: 218322.
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 0.125 INCHES NOMINAL IN
  • Material: STEEL COMP 1010 OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Departure From Cited Document: AS MODIFIED BY SURFACE FINISH AND HOLE DIA
  • Nondefinitive Spec/std Data: A TYPE
  • Thickness: 0.032 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM OR ZINC OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1010 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-021-8322, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Motors Corp. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-021-8322
Primary Part Number218322
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerGeneral Motors Corp
StatusACTIVE
Hole Diameter0.125 INCHES NOMINAL IN
MaterialSTEEL COMP 1010 OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Departure From Cited DocumentAS MODIFIED BY SURFACE FINISH AND HOLE DIA
Nondefinitive Spec/std DataA TYPE
Thickness0.032 INCHES NOMINAL IN
Surface TreatmentCADMIUM OR ZINC OVERALL
Material Document and ClassificationQQ-S-633,COMP FS1010-CANCELED FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Overall Diameter0.312 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4820-00-068-056946833 INTERCHANGEABLE
Guide,valve Stem
Leslie Controls, Inc. Dba Leslie Controls Inc
5310-00-107-0270MS9321-05 INTERCHANGEABLE
Washer,flat
Sae International Dba Sae International
5310-00-167-0815NAS1149FN432P INTERCHANGEABLE
Washer,flat
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5905-00-821-7660225004-3 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Raytheon Company
5310-00-950-1310 INTERCHANGEABLE
Washer,flat
Cross-Reference Index
Part NumberManufacturer
218322 General Motors Corp (USA)
218322 Army Weapons Command Attn Amswe-Ree-S (USA)
AN960-4 Air Associates Inc (USA)
46833 Proverbs 31 Investments Llc Dba Gateway Strategic Sourcing Div Gateway Strategic Sourcing (USA)
MILW1085TYPEA Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4820-00-068-0569INTERCHANGEABLE
GUIDE,VALVE STEM
46833
5310-00-107-0270INTERCHANGEABLE
WASHER,FLAT
MS9321-05
5310-00-167-0815INTERCHANGEABLE
WASHER,FLAT
NAS1149FN432P
5905-00-821-7660INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
225004-3
5310-00-950-1310INTERCHANGEABLE
WASHER,FLAT

Frequently Asked Questions

What is NSN 5310-00-021-8322?

NSN 5310-00-021-8322 is a Washer,flat, manufactured by General Motors Corp, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-021-8322?

NSN 5310-00-021-8322 has 5 cross-referenced part numbers: 218322 (General Motors Corp), 218322 (Army Weapons Command Attn Amswe-Ree-S), AN960-4 (Air Associates Inc), 46833 (Proverbs 31 Investments Llc Dba Gateway Strategic Sourcing Div Gateway Strategic Sourcing), MILW1085TYPEA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5310-00-021-8322?

There are 5 known substitutes for 5310-00-021-8322: 4820-00-068-0569, 5310-00-107-0270, 5310-00-167-0815 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 218322?

Key specifications for 218322: Hole Diameter: 0.125 INCHES NOMINAL IN; Material: STEEL COMP 1010 OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Departure From Cited Document: AS MODIFIED BY SURFACE FINISH AND HOLE DIA. 11 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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