PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A6388Washer,flat

Am General Llc · NSN 5310-00-732-8312 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-732-8312 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-732-8312. Primary manufacturer part number: A6388.
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 1.672 INCHES MINIMUM AND 1.703 INCHES MAXIMUM IN
  • Heat Treatment: QUENCHED
  • Material Document and Classification: QQ-S-698 FED SPEC ALL MATERIAL RESPONSES OR QQ-S-700 FED SPEC ALL MATERIAL RESPONSES OVERALL
  • Material: STEEL COMP 1009 OR STEEL COMP 1020 OVERALL
  • Thickness: 0.141 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
  • Features Provided: CASEHARDENED
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1009 or Steel Comp 1020 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-732-8312, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Am General Llc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-732-8312
Primary Part NumberA6388
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAm General Llc
StatusCANCELLED
Overall Diameter1.672 INCHES MINIMUM AND 1.703 INCHES MAXIMUM IN
Heat TreatmentQUENCHED
Material Document and ClassificationQQ-S-698 FED SPEC ALL MATERIAL RESPONSES OR QQ-S-700 FED SPEC ALL MATERIAL RESPONSES OVERALL
MaterialSTEEL COMP 1009 OR STEEL COMP 1020 OVERALL
Thickness0.141 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Features ProvidedCASEHARDENED
Center Hole Shape StyleROUND
Hole Diameter0.891 INCHES MINIMUM AND 0.922 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
4810-00-418-487314002040-002 INTERCHANGEABLE
Diaphragm,actuator Valve,special
Honeywell Inc Process Control Div
5945-00-475-2754RL908 INTERCHANGEABLE
Relay,electromagnetic
Pollak Joseph Corp
5950-00-519-34872841229 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5962-01-084-9458 INTERCHANGEABLE
Microcircuit,linear
6150-01-316-2211522362-1 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
3120-01-463-8464A6388 INTERCHANGEABLE
Bearing,sleeve
Thern Inc
5120-01-660-763714298 INTERCHANGEABLE
Clamp,c
Jpw Industries Inc. Dba Jpw Industries Inc
Cross-Reference Index
Part NumberManufacturer
522362 Sabreliner Corp (USA)
A6388 PRIMARY Am General Llc (USA)
7735827 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
73-1441 Anthony York Co (USA)
14298 Pressed Metals of America Inc (USA)
7328312 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
522362 Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines (USA)
5310007328312 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
Related Parts
4810-00-418-4873INTERCHANGEABLE
DIAPHRAGM,ACTUATOR VALVE,SPECIAL
14002040-002
5945-00-475-2754INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
RL908
5950-00-519-3487INTERCHANGEABLE
TRANSFORMER,POWER
2841229
5962-01-084-9458INTERCHANGEABLE
MICROCIRCUIT,LINEAR
6150-01-316-2211INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
522362-1
3120-01-463-8464INTERCHANGEABLE
BEARING,SLEEVE
A6388
5120-01-660-7637INTERCHANGEABLE
CLAMP,C
14298

Frequently Asked Questions

What is NSN 5310-00-732-8312?

NSN 5310-00-732-8312 is a Washer,flat, manufactured by Am General Llc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-732-8312?

NSN 5310-00-732-8312 has 8 cross-referenced part numbers: 522362 (Sabreliner Corp), A6388 (Am General Llc), 7735827 (U S Army Tank Automotive Command Amsta-Im-Mm), 73-1441 (Anthony York Co), 14298 (Pressed Metals of America Inc) and 3 more.

What NSN replaces 5310-00-732-8312?

There are 7 known substitutes for 5310-00-732-8312: 4810-00-418-4873, 5945-00-475-2754, 5950-00-519-3487 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A6388?

Key specifications for A6388: Overall Diameter: 1.672 INCHES MINIMUM AND 1.703 INCHES MAXIMUM IN; Heat Treatment: QUENCHED; Material Document and Classification: QQ-S-698 FED SPEC ALL MATERIAL RESPONSES OR QQ-S-700 FED SPEC ALL MATERIAL RESPONSES OVERALL; Material: STEEL COMP 1009 OR STEEL COMP 1020 OVERALL. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-732-8312 still in active supply?

NSN 5310-00-732-8312 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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