PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33891Washer,lock

Fastenal Company Dba Fastenal Co · NSN 5310-01-565-0583 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-565-0583 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-565-0583. Primary manufacturer part number: 33891.
Features
  • Washer,lock — FSC 5310
  • Material Thickness: 0.062 INCHES NOMINAL IN
  • Hole Diameter: 0.252 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Outside Diameter: 0.487 INCHES NOMINAL IN
  • Material: STEEL COMP 4037 OVERALL
  • 2 verified cross-references
  • Primary manufacturer: Fastenal Company Dba Fastenal Co
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4037 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-565-0583, 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 5 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-01-565-0583
Primary Part Number33891
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFastenal Company Dba Fastenal Co
StatusCANCELLED
Material Thickness0.062 INCHES NOMINAL IN
Hole Diameter0.252 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Outside Diameter0.487 INCHES NOMINAL IN
MaterialSTEEL COMP 4037 OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
3110-00-151-8621209MDB1 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Linde Material Handling North America Corporation
5331-00-641-670833891 INTERCHANGEABLE
O-Ring
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5935-00-872-661540883-1 INTERCHANGEABLE
Connector,plug,electrical
The Dewey Electronics Corporation Div Pitometer Log Division
2530-01-317-884218012303 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
General Motors Llc Dba General Motors Llc
6625-01-565-056333-892 INTERCHANGEABLE
Test Set,electronic Systems
Ideal Industries, Inc.
Cross-Reference Index
Part NumberManufacturer
33891 PRIMARY Fastenal Company Dba Fastenal Co (USA)
1001307 PRIMARY General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp (USA)
Related Parts
3110-00-151-8621INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
209MDB1
5331-00-641-6708INTERCHANGEABLE
O-RING
33891
5935-00-872-6615INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
40883-1
2530-01-317-8842INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
18012303
6625-01-565-0563INTERCHANGEABLE
TEST SET,ELECTRONIC SYSTEMS
33-892

Frequently Asked Questions

What is NSN 5310-01-565-0583?

NSN 5310-01-565-0583 is a Washer,lock, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-01-565-0583?

NSN 5310-01-565-0583 has 2 cross-referenced part numbers: 33891 (Fastenal Company Dba Fastenal Co), 1001307 (General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp).

What NSN replaces 5310-01-565-0583?

There are 5 known substitutes for 5310-01-565-0583: 3110-00-151-8621, 5331-00-641-6708, 5935-00-872-6615 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 33891?

Key specifications for 33891: Material Thickness: 0.062 INCHES NOMINAL IN; Hole Diameter: 0.252 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.487 INCHES NOMINAL IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-01-565-0583 still in active supply?

NSN 5310-01-565-0583 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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