PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

475921Washer,flat

Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis · NSN 5310-00-864-7686 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-864-7686 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-864-7686. Primary manufacturer part number: 475921.
Features
  • Washer,flat — FSC 5310
  • Material: COPPER OVERALL
  • Overall Diameter: 0.187 INCHES NOMINAL IN
  • Hole Diameter: 0.127 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Thickness: 0.012 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Center Hole Shape Style: ROUND
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 5310-00-864-7686, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5310-00-864-7686
Primary Part Number475921
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHoneywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis
StatusACTIVE
MaterialCOPPER OVERALL
Overall Diameter0.187 INCHES NOMINAL IN
Hole Diameter0.127 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Thickness0.012 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2530-00-516-787510A8797 INTERCHANGEABLE
Spring and Valve Assembly
Napco International Llc Dba Napco International Inc
Cross-Reference Index
Part NumberManufacturer
475921 PRIMARY Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis (USA)
Related Parts
2530-00-516-7875INTERCHANGEABLE
SPRING AND VALVE ASSEMBLY
10A8797

Frequently Asked Questions

What is NSN 5310-00-864-7686?

NSN 5310-00-864-7686 is a Washer,flat, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-864-7686?

NSN 5310-00-864-7686 has 1 cross-referenced part number: 475921 (Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis).

What NSN replaces 5310-00-864-7686?

There is 1 known substitute for 5310-00-864-7686: 2530-00-516-7875. Verify interchangeability with system specifications before substitution.

What are the specifications of 475921?

Key specifications for 475921: Material: COPPER OVERALL; Overall Diameter: 0.187 INCHES NOMINAL IN; Hole Diameter: 0.127 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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