PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4736O-Ring

Circor Aerospace, Inc. Dba Circor Aerospace Inc · NSN 5331-01-504-9308 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-504-9308 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-504-9308. Primary manufacturer part number: 4736.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Circor Aerospace, Inc. Dba Circor Aerospace Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-504-9308, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Circor Aerospace, Inc. Dba Circor Aerospace Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersCircor Aerospace, Inc. Dba Circor Aerospace Inc (CAGE 91816)
Technical Specifications
ParameterValue
NSN5331-01-504-9308
Primary Part Number4736
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCircor Aerospace, Inc. Dba Circor Aerospace Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5305-00-175-323005-041003 INTERCHANGEABLE
Screw,drive
Saginaw Products Corporation Dba Cignys
6625-00-237-8894 INTERCHANGEABLE
Bridge,resistance
3110-00-633-66752503SKF22212C INTERCHANGEABLE
Bearing,roller,self-Aligning
Circor Naval Solutions Llc Dba Warren Pumps
5950-00-834-9253722801-35 INTERCHANGEABLE
Transformer,power
Raytheon Company Div Rmd Strategic
5340-01-134-21834736 INTERCHANGEABLE
Hardware Kit,electronic Equipmen
Keystone Electronics Corp
4440-01-364-53556286-G501 INTERCHANGEABLE
Drier,air-Gas,desiccant
Howell Laboratories Inc Dba Howell Laboratories Inc
5325-01-429-7819K-4736 INTERCHANGEABLE
Ring,retaining
Natco/carlton Lp
Cross-Reference Index
Part NumberManufacturer
4736 PRIMARY Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
Related Parts
5305-00-175-3230INTERCHANGEABLE
SCREW,DRIVE
05-041003
6625-00-237-8894INTERCHANGEABLE
BRIDGE,RESISTANCE
3110-00-633-6675INTERCHANGEABLE
BEARING,ROLLER,SELF-ALIGNING
2503SKF22212C
5950-00-834-9253INTERCHANGEABLE
TRANSFORMER,POWER
722801-35
5340-01-134-2183INTERCHANGEABLE
HARDWARE KIT,ELECTRONIC EQUIPMEN
4736
4440-01-364-5355INTERCHANGEABLE
DRIER,AIR-GAS,DESICCANT
6286-G501
5325-01-429-7819INTERCHANGEABLE
RING,RETAINING
K-4736

Frequently Asked Questions

What is NSN 5331-01-504-9308?

NSN 5331-01-504-9308 is a O-Ring, manufactured by Circor Aerospace, Inc. Dba Circor Aerospace Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-504-9308?

NSN 5331-01-504-9308 has 1 cross-referenced part number: 4736 (Circor Aerospace, Inc. Dba Circor Aerospace Inc).

What NSN replaces 5331-01-504-9308?

There are 7 known substitutes for 5331-01-504-9308: 5305-00-175-3230, 6625-00-237-8894, 3110-00-633-6675 and 4 more. Verify interchangeability with system specifications before substitution.

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