PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33741Washer,lock

Fastenal Company Dba Fastenal Co · NSN 5310-01-564-3834 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-564-3834 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-564-3834. Primary manufacturer part number: 33741.
Features
  • Washer,lock — FSC 5310
  • Outside Diameter: 0.880 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Style Designator: FLAT EXTERNAL TEETH
  • Surface Treatment: ZINC OVERALL
  • Hole Diameter: 0.513 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
  • Material Thickness: 0.037 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
  • 1 verified cross-reference
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 5310-01-564-3834, 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 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-564-3834
Primary Part Number33741
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFastenal Company Dba Fastenal Co
StatusACTIVE
Outside Diameter0.880 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Style DesignatorFLAT EXTERNAL TEETH
Surface TreatmentZINC OVERALL
Hole Diameter0.513 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
Material Thickness0.037 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2020-00-584-3418 INTERCHANGEABLE
Boom,hoisting,marine
5365-00-737-48021188661 INTERCHANGEABLE
Spacer,sleeve
Chrysler Realty Company Llc Dba Daimler Chrysler
5330-00-765-156833735 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
Cross-Reference Index
Part NumberManufacturer
33741 PRIMARY Fastenal Company Dba Fastenal Co (USA)
Related Parts
2020-00-584-3418INTERCHANGEABLE
BOOM,HOISTING,MARINE
5365-00-737-4802INTERCHANGEABLE
SPACER,SLEEVE
1188661
5330-00-765-1568INTERCHANGEABLE
SEAL,PLAIN ENCASED
33735

Frequently Asked Questions

What is NSN 5310-01-564-3834?

NSN 5310-01-564-3834 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 5310-01-564-3834?

NSN 5310-01-564-3834 has 1 cross-referenced part number: 33741 (Fastenal Company Dba Fastenal Co).

What NSN replaces 5310-01-564-3834?

There are 3 known substitutes for 5310-01-564-3834: 2020-00-584-3418, 5365-00-737-4802, 5330-00-765-1568. Verify interchangeability with system specifications before substitution.

What are the specifications of 33741?

Key specifications for 33741: Outside Diameter: 0.880 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN; End Item Identification: TOW TRACTOR, AIRCRAFT; Material: STEEL OVERALL; Style Designator: FLAT EXTERNAL TEETH. 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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