PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3-8TO-Ring

Capital Westward Inc · NSN 5331-01-408-2400 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-408-2400 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-408-2400. Primary manufacturer part number: 3-8T.
Features
  • O-Ring — FSC 5331
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE
  • 1 verified cross-reference
  • Primary manufacturer: Capital Westward Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Plastic Polytetrafluoroethylene construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-408-2400, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Capital Westward Inc. Government technical data includes 1 verified specification, 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
NSN5331-01-408-2400
Primary Part Number3-8T
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCapital Westward Inc
StatusACTIVE
MaterialPLASTIC POLYTETRAFLUOROETHYLENE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3417-00-504-1728 INTERCHANGEABLE
Take Up Nut
3110-00-554-3374 INTERCHANGEABLE
Bearing,ball,annular
5965-01-668-768038T INTERCHANGEABLE
Microphone,magnetic
L3harris Technologies Integrated Systems L.p. Dba L3harris Technologies
Cross-Reference Index
Part NumberManufacturer
3-8T Capital Westward Inc (USA)
Related Parts
3417-00-504-1728INTERCHANGEABLE
TAKE UP NUT
3110-00-554-3374INTERCHANGEABLE
BEARING,BALL,ANNULAR
5965-01-668-7680INTERCHANGEABLE
MICROPHONE,MAGNETIC
38T

Frequently Asked Questions

What is NSN 5331-01-408-2400?

NSN 5331-01-408-2400 is a O-Ring, manufactured by Capital Westward Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-408-2400?

NSN 5331-01-408-2400 has 1 cross-referenced part number: 3-8T (Capital Westward Inc).

What NSN replaces 5331-01-408-2400?

There are 3 known substitutes for 5331-01-408-2400: 3417-00-504-1728, 3110-00-554-3374, 5965-01-668-7680. Verify interchangeability with system specifications before substitution.

What are the specifications of 3-8T?

Key specifications for 3-8T: Material: PLASTIC POLYTETRAFLUOROETHYLENE. 1 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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