PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C746575SUB2PT6O-Ring

Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin · NSN 5331-00-141-4233 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-141-4233 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-141-4233. Primary manufacturer part number: C746575SUB2PT6.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • Material: RUBBER CHLOROPRENE CLASS CR
  • 5 verified cross-references
  • Primary manufacturer: Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Chloroprene Class Cr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-141-4233, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-141-4233
Primary Part NumberC746575SUB2PT6
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerLockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin
StatusACTIVE
Center Hole Diameter0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
MaterialRUBBER CHLOROPRENE CLASS CR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
9320-00-202-4022 INTERCHANGEABLE
Rubber Sheet,solid
4720-00-235-5451 INTERCHANGEABLE
Tubing,nonmetallic
5999-00-382-3504401153 INTERCHANGEABLE
Contact,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5330-00-582-1548 INTERCHANGEABLE
Retainer,packing
5331-00-892-41234400181-0110 INTERCHANGEABLE
O-Ring
Marotta Controls Inc
4720-01-048-4421160D955333-11 INTERCHANGEABLE
Hose,nonmetallic
Northrop Grumman Systems Corporation
5325-01-241-1162215-4454978 PC95 INTERCHANGEABLE
Grommet,nonmetallic
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
C746575SUB2PT6 Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin (USA)
MIL-R-6855 CL2 GR60 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
5330-228-5 General Stores Supply Office (USA)
4011-53 Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
4400181-0110 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
9320-00-202-4022INTERCHANGEABLE
RUBBER SHEET,SOLID
4720-00-235-5451INTERCHANGEABLE
TUBING,NONMETALLIC
5999-00-382-3504INTERCHANGEABLE
CONTACT,ELECTRICAL
401153
5330-00-582-1548INTERCHANGEABLE
RETAINER,PACKING
5331-00-892-4123INTERCHANGEABLE
O-RING
4400181-0110
4720-01-048-4421INTERCHANGEABLE
HOSE,NONMETALLIC
160D955333-11
5325-01-241-1162INTERCHANGEABLE
GROMMET,NONMETALLIC
215-4454978 PC95

Frequently Asked Questions

What is NSN 5331-00-141-4233?

NSN 5331-00-141-4233 is a O-Ring, manufactured by Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-141-4233?

NSN 5331-00-141-4233 has 5 cross-referenced part numbers: C746575SUB2PT6 (Lockheed Martin Corporation Dba Lockheed Martin Div Lockheed Martin), MIL-R-6855 CL2 GR60 (Federal Specifications Promulgated by General Services Administration Washington DC), 5330-228-5 (General Stores Supply Office), 4011-53 (Circor Aerospace, Inc. Dba Circor Aerospace Inc), 4400181-0110 (Zf Industrieantriebe Witten Gmbh).

What NSN replaces 5331-00-141-4233?

There are 7 known substitutes for 5331-00-141-4233: 9320-00-202-4022, 4720-00-235-5451, 5999-00-382-3504 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C746575SUB2PT6?

Key specifications for C746575SUB2PT6: Center Hole Diameter: 0.296 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN; Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Material: RUBBER CHLOROPRENE CLASS CR. 3 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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