PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LTN43250Washer,seal

Gaynor Industries Corporation · NSN 5310-01-622-6311 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-622-6311 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-622-6311. Primary manufacturer part number: LTN43250.
Features
  • Washer,seal — FSC 5310
  • Hole Diameter: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
  • Outside Diameter: 0.437 INCHES NOMINAL0.437 INCHES NOMINAL IN
  • Material: RUBBER NEOPRENE SEALING ELEMENT
  • Material: STEEL COMP 304 BODY
  • Style Designator: CONCAVE
  • 3 verified cross-references
  • Primary manufacturer: Gaynor Industries Corporation
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
General Description

The Washer,seal, cataloged under National Stock Number 5310-01-622-6311, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Gaynor Industries Corporation. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN5310-01-622-6311
Primary Part NumberLTN43250
Item NameWasher,seal
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerGaynor Industries Corporation
StatusACTIVE
Hole Diameter0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN
Outside Diameter0.437 INCHES NOMINAL0.437 INCHES NOMINAL IN
MaterialRUBBER NEOPRENE SEALING ELEMENT
MaterialSTEEL COMP 304 BODY
Style DesignatorCONCAVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5310-01-607-800275107 INTERCHANGEABLE
Washer,seal
Apm Hexseal Corp
5310-01-608-4451 INTERCHANGEABLE
Washer,seal
5310-01-622-6329 INTERCHANGEABLE
Washer,seal
Cross-Reference Index
Part NumberManufacturer
LTN43250 Gaynor Industries Corporation (USA)
17-3-2829 W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center (USA)
17-3-2829-1 W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center (USA)
Related Parts
5310-01-607-8002INTERCHANGEABLE
WASHER,SEAL
75107
5310-01-608-4451INTERCHANGEABLE
WASHER,SEAL
5310-01-622-6329INTERCHANGEABLE
WASHER,SEAL

Frequently Asked Questions

What is NSN 5310-01-622-6311?

NSN 5310-01-622-6311 is a Washer,seal, manufactured by Gaynor Industries Corporation, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-622-6311?

NSN 5310-01-622-6311 has 3 cross-referenced part numbers: LTN43250 (Gaynor Industries Corporation), 17-3-2829 (W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center), 17-3-2829-1 (W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center).

What NSN replaces 5310-01-622-6311?

There are 3 known substitutes for 5310-01-622-6311: 5310-01-607-8002, 5310-01-608-4451, 5310-01-622-6329. Verify interchangeability with system specifications before substitution.

What are the specifications of LTN43250?

Key specifications for LTN43250: Hole Diameter: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN; Outside Diameter: 0.437 INCHES NOMINAL0.437 INCHES NOMINAL IN; Material: RUBBER NEOPRENE SEALING ELEMENT; Material: STEEL COMP 304 BODY. 9 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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