PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

25450O-Ring

Allied Systems Company Dba Allied Systems Co · NSN 5331-01-399-4671 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-399-4671 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-399-4671. Primary manufacturer part number: 25450.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Allied Systems Company Dba Allied Systems Co
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-399-4671, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Allied Systems Company Dba Allied Systems Co. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersAllied Systems Company Dba Allied Systems Co (CAGE 60848)
Technical Specifications
ParameterValue
NSN5331-01-399-4671
Primary Part Number25450
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerAllied Systems Company Dba Allied Systems Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
2805-00-305-8265F218I02030 INTERCHANGEABLE
Tappet,engine Poppet Valve
Renk America Llc Div Renk America
5935-00-391-575625450 INTERCHANGEABLE
Connector,receptacle,electrical
Amphenol Corporation Div Amphenol Rf
5930-00-405-808424054 INTERCHANGEABLE
Switch,rotary
Cole Hersee Company
5330-00-444-4864220602PC6 INTERCHANGEABLE
Gasket
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
1005-00-450-2732 INTERCHANGEABLE
Fore-End
4330-01-096-231225450 INTERCHANGEABLE
Filter Body,fluid
Pall Aeropower Corporation
4330-01-460-21563203537-1 INTERCHANGEABLE
Filter Body,fluid
Cosmodyne, Llc Dba Cosmodyne Llc
5975-01-492-760025450-63 INTERCHANGEABLE
Panel,blank
United States Department of the Navy Dba Naval Surface Warfare Center Panama City
Cross-Reference Index
Part NumberManufacturer
25450 PRIMARY Allied Systems Company Dba Allied Systems Co (USA)
Related Parts
2805-00-305-8265INTERCHANGEABLE
TAPPET,ENGINE POPPET VALVE
F218I02030
5935-00-391-5756INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
25450
5930-00-405-8084INTERCHANGEABLE
SWITCH,ROTARY
24054
5330-00-444-4864INTERCHANGEABLE
GASKET
220602PC6
1005-00-450-2732INTERCHANGEABLE
FORE-END
4330-01-096-2312INTERCHANGEABLE
FILTER BODY,FLUID
25450
4330-01-460-2156INTERCHANGEABLE
FILTER BODY,FLUID
3203537-1
5975-01-492-7600INTERCHANGEABLE
PANEL,BLANK
25450-63

Frequently Asked Questions

What is NSN 5331-01-399-4671?

NSN 5331-01-399-4671 is a O-Ring, manufactured by Allied Systems Company Dba Allied Systems Co, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-399-4671?

NSN 5331-01-399-4671 has 1 cross-referenced part number: 25450 (Allied Systems Company Dba Allied Systems Co).

What NSN replaces 5331-01-399-4671?

There are 8 known substitutes for 5331-01-399-4671: 2805-00-305-8265, 5935-00-391-5756, 5930-00-405-8084 and 5 more. Verify interchangeability with system specifications before substitution.

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