PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55687Washer,flat

Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) · NSN 5310-00-032-5850 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-032-5850 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-032-5850. Primary manufacturer part number: 55687.
Features
  • Washer,flat — FSC 5310
  • Material: STEEL OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Thickness: 0.161 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Hole Diameter: 0.406 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.802 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-032-5850, 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 Div Aerospace-South Bend (westmoor St). Government technical data includes 9 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-032-5850
Primary Part Number55687
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHoneywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St)
StatusACTIVE
MaterialSTEEL OVERALL
Surface TreatmentCADMIUM OVERALL
Thickness0.161 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Hole Diameter0.406 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.802 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Heat TreatmentAS FABRICATED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4730-00-196-1485A733S-32CFG INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
6210-01-475-860455687 INTERCHANGEABLE
Light,indicator
Wells Mfg Co
6145-01-623-279055687 INTERCHANGEABLE
Braid,wire
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
Cross-Reference Index
Part NumberManufacturer
55687 PRIMARY Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) (USA)
Related Parts
4730-00-196-1485INTERCHANGEABLE
NIPPLE,PIPE
A733S-32CFG
6210-01-475-8604INTERCHANGEABLE
LIGHT,INDICATOR
55687
6145-01-623-2790INTERCHANGEABLE
BRAID,WIRE
55687

Frequently Asked Questions

What is NSN 5310-00-032-5850?

NSN 5310-00-032-5850 is a Washer,flat, manufactured by Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St), classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-032-5850?

NSN 5310-00-032-5850 has 1 cross-referenced part number: 55687 (Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St)).

What NSN replaces 5310-00-032-5850?

There are 3 known substitutes for 5310-00-032-5850: 4730-00-196-1485, 6210-01-475-8604, 6145-01-623-2790. Verify interchangeability with system specifications before substitution.

What are the specifications of 55687?

Key specifications for 55687: Material: STEEL OVERALL; Surface Treatment: CADMIUM OVERALL; Thickness: 0.161 INCHES NOMINAL IN; Peripheral Shape Style: ROUND. 9 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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