PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

90504Washer,flat

Telemechanics Inc · NSN 5310-00-599-8250 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-599-8250 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-599-8250. Primary manufacturer part number: 90504.
Features
  • Washer,flat — FSC 5310
  • Overall Diameter: 0.562 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Material: WOOL OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.375 INCHES NOMINAL IN
  • Thickness: 0.094 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Wool Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-599-8250, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Telemechanics Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-599-8250
Primary Part Number90504
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerTelemechanics Inc
StatusCANCELLED
Overall Diameter0.562 INCHES NOMINAL IN
Center Hole Shape StyleROUND
MaterialWOOL OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.375 INCHES NOMINAL IN
Thickness0.094 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
4820-00-019-9612 INTERCHANGEABLE
Valve,safety Relief
3110-00-144-8662 INTERCHANGEABLE
Bearing,ball,annular
4920-01-297-973590504 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
4140-01-520-480190504 INTERCHANGEABLE
Spot Cooler
Patterson Fan Company
Cross-Reference Index
Part NumberManufacturer
90504 Zf Industrieantriebe Witten Gmbh (DEU)
6739929 Rolls-Royce Corporation (USA)
90504 PRIMARY Telemechanics Inc (USA)
90504 At and T Corp (USA)
Related Parts
4820-00-019-9612INTERCHANGEABLE
VALVE,SAFETY RELIEF
3110-00-144-8662INTERCHANGEABLE
BEARING,BALL,ANNULAR
4920-01-297-9735INTERCHANGEABLE
TEST PROGRAM SET
90504
4140-01-520-4801INTERCHANGEABLE
SPOT COOLER
90504

Frequently Asked Questions

What is NSN 5310-00-599-8250?

NSN 5310-00-599-8250 is a Washer,flat, manufactured by Telemechanics Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-599-8250?

NSN 5310-00-599-8250 has 4 cross-referenced part numbers: 90504 (Zf Industrieantriebe Witten Gmbh), 6739929 (Rolls-Royce Corporation), 90504 (Telemechanics Inc), 90504 (At and T Corp).

What NSN replaces 5310-00-599-8250?

There are 4 known substitutes for 5310-00-599-8250: 4820-00-019-9612, 3110-00-144-8662, 4920-01-297-9735 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 90504?

Key specifications for 90504: Overall Diameter: 0.562 INCHES NOMINAL IN; Center Hole Shape Style: ROUND; Material: WOOL OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-599-8250 still in active supply?

NSN 5310-00-599-8250 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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