PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

381637PC29Washer,lock

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5310-00-274-8682 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-274-8682 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-274-8682. Primary manufacturer part number: 381637PC29.
Features
  • Washer,lock — FSC 5310
  • Hole Diameter: 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN
  • Material Thickness: 0.018 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Surface Treatment: TIN OVERALL
  • Departure From Cited Document: AS MODIFIED BY FINISH
  • Style Designator: FLAT INTERNAL TEETH
  • Outside Diameter: 0.288 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-274-8682, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN5310-00-274-8682
Primary Part Number381637PC29
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Hole Diameter0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN
Material Thickness0.018 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Surface TreatmentTIN OVERALL
Departure From Cited DocumentAS MODIFIED BY FINISH
Style DesignatorFLAT INTERNAL TEETH
Outside Diameter0.288 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5310-00-167-0876 INTERCHANGEABLE
Washer,lock
5310-00-579-0079MS35333-37 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
381637PC29 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
AN936A6 Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
5310-00-167-0876INTERCHANGEABLE
WASHER,LOCK
5310-00-579-0079INTERCHANGEABLE
WASHER,LOCK
MS35333-37

Frequently Asked Questions

What is NSN 5310-00-274-8682?

NSN 5310-00-274-8682 is a Washer,lock, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-274-8682?

NSN 5310-00-274-8682 has 2 cross-referenced part numbers: 381637PC29 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), AN936A6 (Aeronautical Standards Group Dept of Navy and Air Force).

What NSN replaces 5310-00-274-8682?

There are 2 known substitutes for 5310-00-274-8682: 5310-00-167-0876, 5310-00-579-0079. Verify interchangeability with system specifications before substitution.

What are the specifications of 381637PC29?

Key specifications for 381637PC29: Hole Diameter: 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM IN; Material Thickness: 0.018 INCHES NOMINAL IN; Material: STEEL OVERALL; Surface Treatment: TIN OVERALL. 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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