PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

57387Washer,flat

Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) · NSN 5310-00-033-5276 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-033-5276 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-033-5276. Primary manufacturer part number: 57387.
Features
  • Washer,flat — FSC 5310
  • Heat Treatment: AS FABRICATED
  • Material: STEEL COMP 1010 OVERALL
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Thickness: 0.062 INCHES NOMINAL IN
  • Overall Diameter: 0.687 INCHES NOMINAL IN
  • Hole Diameter: 0.406 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1010 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-033-5276, 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 10 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-033-5276
Primary Part Number57387
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHoneywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St)
StatusACTIVE
Heat TreatmentAS FABRICATED
MaterialSTEEL COMP 1010 OVERALL
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thickness0.062 INCHES NOMINAL IN
Overall Diameter0.687 INCHES NOMINAL IN
Hole Diameter0.406 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Peripheral Shape StyleROUND
Surface TreatmentCADMIUM OVERALL
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5930-00-258-4304SC-B-26789 INTERCHANGEABLE
Switch,toggle
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5331-01-213-764557387 INTERCHANGEABLE
O-Ring
Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company
Cross-Reference Index
Part NumberManufacturer
57387 PRIMARY Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St) (USA)
Related Parts
5930-00-258-4304INTERCHANGEABLE
SWITCH,TOGGLE
SC-B-26789
5331-01-213-7645INTERCHANGEABLE
O-RING
57387

Frequently Asked Questions

What is NSN 5310-00-033-5276?

NSN 5310-00-033-5276 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 5310-00-033-5276?

NSN 5310-00-033-5276 has 1 cross-referenced part number: 57387 (Honeywell International Inc. Dba Honeywell Div Aerospace-South Bend (westmoor St)).

What NSN replaces 5310-00-033-5276?

There are 2 known substitutes for 5310-00-033-5276: 5930-00-258-4304, 5331-01-213-7645. Verify interchangeability with system specifications before substitution.

What are the specifications of 57387?

Key specifications for 57387: Heat Treatment: AS FABRICATED; Material: STEEL COMP 1010 OVERALL; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Thickness: 0.062 INCHES NOMINAL IN. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com