PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21532Washer,lock

Fasteners Inc. · NSN 5310-01-546-5293 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-546-5293 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-546-5293. Primary manufacturer part number: 21532.
Features
  • Washer,lock — FSC 5310
  • Material: STEEL CORROSION RESISTING OVERALL
  • 2 verified cross-references
  • Primary manufacturer: Fasteners Inc.
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-546-5293, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fasteners Inc.. Government technical data includes 1 verified specification, 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-546-5293
Primary Part Number21532
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFasteners Inc.
StatusACTIVE
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5930-00-163-25469571 INTERCHANGEABLE
Switch,thermostatic
Schneider Metal Mfg Co Inc Ross Temp Div
5306-01-193-929221532 INTERCHANGEABLE
Bolt,machine
Moog Inc. Dba Ampac-Isp Corp
1630-01-335-45432-1532 INTERCHANGEABLE
Brake Unit,main Whe
Goodrich Corporation
4730-01-412-7671123P60117-1 INTERCHANGEABLE
Clamp,hose
Northrop Grumman Systems Corporation
6515-01-552-92522153-2 INTERCHANGEABLE
Sheath,screwdriver
Abbott Spine Inc.
3770-01-588-887021532 INTERCHANGEABLE
Cage,animal
Petmate
Cross-Reference Index
Part NumberManufacturer
21532 PRIMARY Fasteners Inc. (USA)
1103.025.0.11 PRIMARY Fasteners Inc. (USA)
Related Parts
5930-00-163-2546INTERCHANGEABLE
SWITCH,THERMOSTATIC
9571
5306-01-193-9292INTERCHANGEABLE
BOLT,MACHINE
21532
1630-01-335-4543INTERCHANGEABLE
BRAKE UNIT,MAIN WHE
2-1532
4730-01-412-7671INTERCHANGEABLE
CLAMP,HOSE
123P60117-1
6515-01-552-9252INTERCHANGEABLE
SHEATH,SCREWDRIVER
2153-2
3770-01-588-8870INTERCHANGEABLE
CAGE,ANIMAL
21532

Frequently Asked Questions

What is NSN 5310-01-546-5293?

NSN 5310-01-546-5293 is a Washer,lock, manufactured by Fasteners Inc., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-546-5293?

NSN 5310-01-546-5293 has 2 cross-referenced part numbers: 21532 (Fasteners Inc.), 1103.025.0.11 (Fasteners Inc.).

What NSN replaces 5310-01-546-5293?

There are 6 known substitutes for 5310-01-546-5293: 5930-00-163-2546, 5306-01-193-9292, 1630-01-335-4543 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21532?

Key specifications for 21532: Part Name Assigned by Controlling Agency: 1/4" MEDIUM LOCK WASHER; End Item Identification: 1940-01-526-7164, MK3 BRIDGE ERECTION BOAT; Material: STEEL CORROSION RESISTING OVERALL; Special Features: MATERIAL IS 18-8 STAINLESS STEEL. 4 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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