PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21049Washer,lock

Dresser, Llc · NSN 5310-00-431-7349 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-431-7349 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-431-7349. Primary manufacturer part number: 21049.
Features
  • Washer,lock — FSC 5310
  • 1 verified cross-reference
  • Primary manufacturer: Dresser, Llc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-431-7349, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dresser, Llc. This item has 1 commercial cross-reference 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.

Catalog Facts
Item NameWasher,lock
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersDresser, Llc (CAGE 64104)
Technical Specifications
ParameterValue
NSN5310-00-431-7349
Primary Part Number21049
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDresser, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5315-01-069-513621049 INTERCHANGEABLE
Pin
Paccar Winch Inc Dba Paccar Winch Division
2530-01-100-453421049 INTERCHANGEABLE
Push Rod
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
5950-01-215-72345586847 INTERCHANGEABLE
Transformer,power
Naval Sea Systems Command
5950-01-221-5542425163-1 INTERCHANGEABLE
Transformer,power
L3harris Technologies, Inc. Dba Harris Corp Div Antenna Products
5340-01-397-083921049 INTERCHANGEABLE
Clamp,loop
All-States Inc.
5315-01-705-820421049 INTERCHANGEABLE
Pin,straight,headed
Charles Reed Knight Jr Dba Knight's Armament Company
Cross-Reference Index
Part NumberManufacturer
21049 PRIMARY Dresser, Llc (USA)
Related Parts
5315-01-069-5136INTERCHANGEABLE
PIN
21049
2530-01-100-4534INTERCHANGEABLE
PUSH ROD
21049
5950-01-215-7234INTERCHANGEABLE
TRANSFORMER,POWER
5586847
5950-01-221-5542INTERCHANGEABLE
TRANSFORMER,POWER
425163-1
5340-01-397-0839INTERCHANGEABLE
CLAMP,LOOP
21049
5315-01-705-8204INTERCHANGEABLE
PIN,STRAIGHT,HEADED
21049

Frequently Asked Questions

What is NSN 5310-00-431-7349?

NSN 5310-00-431-7349 is a Washer,lock, manufactured by Dresser, Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-431-7349?

NSN 5310-00-431-7349 has 1 cross-referenced part number: 21049 (Dresser, Llc).

What NSN replaces 5310-00-431-7349?

There are 6 known substitutes for 5310-00-431-7349: 5315-01-069-5136, 2530-01-100-4534, 5950-01-215-7234 and 3 more. Verify interchangeability with system specifications before substitution.

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