PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

701487-3Washer,flat

Hamilton Sundstrand Corporation · NSN 5310-00-491-3860 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-491-3860 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-491-3860. Primary manufacturer part number: 701487-3.
Features
  • Washer,flat — FSC 5310
  • Cross-Sectional Shape Style: RECTANGULAR
  • Hardness Rating: 50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM
  • Peripheral Shape Style: ROUND
  • Thickness: 0.024 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
  • Hole Diameter: 0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN
  • Material Document and Classification: AMS 5121 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP 1095 OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1095 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-491-3860, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hamilton Sundstrand Corporation. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references 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
NSN5310-00-491-3860
Primary Part Number701487-3
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHamilton Sundstrand Corporation
StatusACTIVE
Cross-Sectional Shape StyleRECTANGULAR
Hardness Rating50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM
Peripheral Shape StyleROUND
Thickness0.024 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
Hole Diameter0.678 INCHES MINIMUM AND 0.698 INCHES MAXIMUM IN
Material Document and ClassificationAMS 5121 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 1095 OVERALL
Center Hole Shape StyleROUND
Overall Diameter0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-701-48731229J166 INTERCHANGEABLE
Washer Service Brak
Utility Trailer Mfg Co
Cross-Reference Index
Part NumberManufacturer
701487-3 PRIMARY Hamilton Sundstrand Corporation (USA)
693048-3 Hamilton Sundstrand Corporation (USA)
Related Parts
5310-00-701-4873INTERCHANGEABLE
WASHER SERVICE BRAK
1229J166

Frequently Asked Questions

What is NSN 5310-00-491-3860?

NSN 5310-00-491-3860 is a Washer,flat, manufactured by Hamilton Sundstrand Corporation, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-491-3860?

NSN 5310-00-491-3860 has 2 cross-referenced part numbers: 701487-3 (Hamilton Sundstrand Corporation), 693048-3 (Hamilton Sundstrand Corporation).

What NSN replaces 5310-00-491-3860?

There is 1 known substitute for 5310-00-491-3860: 5310-00-701-4873. Verify interchangeability with system specifications before substitution.

What are the specifications of 701487-3?

Key specifications for 701487-3: Cross-Sectional Shape Style: RECTANGULAR; Hardness Rating: 50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM; Peripheral Shape Style: ROUND; Thickness: 0.024 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN. 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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