PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7603478Washer,flat

Us Army Aviation and Missile Command · NSN 5310-00-596-9479 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-596-9479 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-596-9479. Primary manufacturer part number: 7603478.
Features
  • Washer,flat — FSC 5310
  • Center Hole Width: 1.383 INCHES MINIMUM AND 1.388 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material: STEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OVERALL
  • Overall Diameter: 2.219 INCHES MINIMUM AND 2.281 INCHES MAXIMUM IN
  • Hole Diameter: 1.484 INCHES MINIMUM AND 1.547 INCHES MAXIMUM IN
  • Center Hole Shape Style: DEE
  • Features Provided: CASEHARDENED
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1009 or Steel Comp 1015 or Steel Comp 1018 or Steel Comp 1020 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-596-9479, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, 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
NSN5310-00-596-9479
Primary Part Number7603478
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerUs Army Aviation and Missile Command
StatusACTIVE
Center Hole Width1.383 INCHES MINIMUM AND 1.388 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
MaterialSTEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OVERALL
Overall Diameter2.219 INCHES MINIMUM AND 2.281 INCHES MAXIMUM IN
Hole Diameter1.484 INCHES MINIMUM AND 1.547 INCHES MAXIMUM IN
Center Hole Shape StyleDEE
Features ProvidedCASEHARDENED
Peripheral Shape StyleROUND
Hardness Rating75.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 79.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
Thickness0.141 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
Material Document and ClassificationQQ-S-698 HR PO OR CR FED SPEC ALL MATERIAL RESPONSES OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-771-484811398 INTERCHANGEABLE
Retainer,packing
Eaton Corporation Dba Eaton Inoac Div Eaton
5998-01-189-10520104604-1 INTERCHANGEABLE
Circuit Card Assembly
Niwc Pacific San Diego Navy Erp Dba Naval Information Warfare Center Pacific Div Naval Information Warfare Center Pacific
Cross-Reference Index
Part NumberManufacturer
7603478 The Boeing Company (USA)
7603478 PRIMARY Us Army Aviation and Missile Command (USA)
8328177 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
A11398 Clevite an Imperial Clevite Co Powder Metal Products Div (USA)
7603478 The Boeing Company (USA)
Related Parts
5330-00-771-4848INTERCHANGEABLE
RETAINER,PACKING
11398
5998-01-189-1052INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
0104604-1

Frequently Asked Questions

What is NSN 5310-00-596-9479?

NSN 5310-00-596-9479 is a Washer,flat, manufactured by Us Army Aviation and Missile Command, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-596-9479?

NSN 5310-00-596-9479 has 5 cross-referenced part numbers: 7603478 (The Boeing Company), 7603478 (Us Army Aviation and Missile Command), 8328177 (U S Army Tank Automotive Command Amsta-Im-Mm), A11398 (Clevite an Imperial Clevite Co Powder Metal Products Div), 7603478 (The Boeing Company).

What NSN replaces 5310-00-596-9479?

There are 2 known substitutes for 5310-00-596-9479: 5330-00-771-4848, 5998-01-189-1052. Verify interchangeability with system specifications before substitution.

What are the specifications of 7603478?

Key specifications for 7603478: Center Hole Width: 1.383 INCHES MINIMUM AND 1.388 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Material: STEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OVERALL; Overall Diameter: 2.219 INCHES MINIMUM AND 2.281 INCHES MAXIMUM IN. 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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