PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

190582Washer,flat

Woodward, Inc. · NSN 5310-00-641-1218 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-641-1218 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-641-1218. Primary manufacturer part number: 190582.
Features
  • Washer,flat — FSC 5310
  • Material: COPPER OVERALL
  • Overall Diameter: 0.312 INCHES NOMINAL IN
  • Thickness: 0.031 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hole Diameter: 0.203 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-641-1218, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Woodward, Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-641-1218
Primary Part Number190582
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerWoodward, Inc.
StatusACTIVE
MaterialCOPPER OVERALL
Overall Diameter0.312 INCHES NOMINAL IN
Thickness0.031 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Hole Diameter0.203 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-245-5446W222-37 INTERCHANGEABLE
Washer,flat
Enerpac Tool Group Corp
Cross-Reference Index
Part NumberManufacturer
190582 Woodward, Inc. Div Fuel Systems and Controls (USA)
190582 PRIMARY Woodward, Inc. (USA)
5310PL0940928 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
5310-00-245-5446INTERCHANGEABLE
WASHER,FLAT
W222-37

Frequently Asked Questions

What is NSN 5310-00-641-1218?

NSN 5310-00-641-1218 is a Washer,flat, manufactured by Woodward, Inc., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-641-1218?

NSN 5310-00-641-1218 has 3 cross-referenced part numbers: 190582 (Woodward, Inc. Div Fuel Systems and Controls), 190582 (Woodward, Inc.), 5310PL0940928 (Jednolity Indeks Materialowy - Uniform Material Index).

What NSN replaces 5310-00-641-1218?

There is 1 known substitute for 5310-00-641-1218: 5310-00-245-5446. Verify interchangeability with system specifications before substitution.

What are the specifications of 190582?

Key specifications for 190582: Material: COPPER OVERALL; Overall Diameter: 0.312 INCHES NOMINAL IN; Thickness: 0.031 INCHES NOMINAL IN; Peripheral Shape Style: ROUND. 7 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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