PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11241686Washer,lock

Fastenal Company · NSN 5310-01-728-2564 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-728-2564 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-728-2564. Primary manufacturer part number: 11241686.
Features
  • Washer,lock — FSC 5310
  • Outside Diameter: 0.583 INCHES NOMINAL IN
  • Hole Diameter: 0.322 INCHES NOMINAL IN
  • Material Thickness: 0.078 INCHES NOMINAL IN
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Material: STEEL OVERALL
  • 1 verified cross-reference
  • Primary manufacturer: Fastenal Company
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 5310-01-728-2564, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fastenal Company. Government technical data includes 5 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
NSN5310-01-728-2564
Primary Part Number11241686
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFastenal Company
StatusACTIVE
Outside Diameter0.583 INCHES NOMINAL IN
Hole Diameter0.322 INCHES NOMINAL IN
Material Thickness0.078 INCHES NOMINAL IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5930-00-839-105912710469 INTERCHANGEABLE
Adapter,switch Actuator
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
Cross-Reference Index
Part NumberManufacturer
11241686 PRIMARY Fastenal Company (USA)
Related Parts
5930-00-839-1059INTERCHANGEABLE
ADAPTER,SWITCH ACTUATOR
12710469

Frequently Asked Questions

What is NSN 5310-01-728-2564?

NSN 5310-01-728-2564 is a Washer,lock, manufactured by Fastenal Company, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-728-2564?

NSN 5310-01-728-2564 has 1 cross-referenced part number: 11241686 (Fastenal Company).

What NSN replaces 5310-01-728-2564?

There is 1 known substitute for 5310-01-728-2564: 5930-00-839-1059. Verify interchangeability with system specifications before substitution.

What are the specifications of 11241686?

Key specifications for 11241686: End Item Identification: 2540016959131; Outside Diameter: 0.583 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: WASHER,LOCK; Special Features: SCREW SIZE: 5/16". 8 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