PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12759-00767Washer,lock

Fastenal Company Dba Fastenal Co · NSN 5310-01-564-3330 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-564-3330 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-564-3330. Primary manufacturer part number: 12759-00767.
Features
  • Washer,lock — FSC 5310
  • Hole Diameter: 0.440 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
  • Outside Diameter: 0.776 INCHES MAXIMUM IN
  • Surface Treatment: ZINC OVERALL
  • Material: STEEL OVERALL
  • Material Thickness: 0.109 INCHES MINIMUM IN
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • 2 verified cross-references
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 5310-01-564-3330, 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 Dba Fastenal Co. Government technical data includes 6 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-564-3330
Primary Part Number12759-00767
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFastenal Company Dba Fastenal Co
StatusACTIVE
Hole Diameter0.440 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN
Outside Diameter0.776 INCHES MAXIMUM IN
Surface TreatmentZINC OVERALL
MaterialSTEEL OVERALL
Material Thickness0.109 INCHES MINIMUM IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3120-00-350-44928380683 INTERCHANGEABLE
Bearing,sleeve
U S Army Tank Automotive Command Amsta-Im-Mm
6515-00-481-2056 INTERCHANGEABLE
Catheter,urethral
5136-00-729-568454321 INTERCHANGEABLE
Tap,thread Cutting
Tapco Cutting Tools Inc
3040-00-902-371211697424 INTERCHANGEABLE
Shaft,shouldered
The Boeing Company
Cross-Reference Index
Part NumberManufacturer
12759-00767 PRIMARY Fastenal Company Dba Fastenal Co (USA)
33624 PRIMARY Fastenal Company Dba Fastenal Co (USA)
Related Parts
3120-00-350-4492INTERCHANGEABLE
BEARING,SLEEVE
8380683
6515-00-481-2056INTERCHANGEABLE
CATHETER,URETHRAL
5136-00-729-5684INTERCHANGEABLE
TAP,THREAD CUTTING
54321
3040-00-902-3712INTERCHANGEABLE
SHAFT,SHOULDERED
11697424

Frequently Asked Questions

What is NSN 5310-01-564-3330?

NSN 5310-01-564-3330 is a Washer,lock, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-564-3330?

NSN 5310-01-564-3330 has 2 cross-referenced part numbers: 12759-00767 (Fastenal Company Dba Fastenal Co), 33624 (Fastenal Company Dba Fastenal Co).

What NSN replaces 5310-01-564-3330?

There are 4 known substitutes for 5310-01-564-3330: 3120-00-350-4492, 6515-00-481-2056, 5136-00-729-5684 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12759-00767?

Key specifications for 12759-00767: Special Features: 7/16 INCH ZINC PLATED MEDIUM SPLIT LOCK WASHER IN; End Item Identification: MRAP - COUGAR; Hole Diameter: 0.440 INCHES MINIMUM AND 0.450 INCHES MAXIMUM IN; Outside Diameter: 0.776 INCHES MAXIMUM IN. 8 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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