PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6750558O-Ring

Allison Transmission Inc Dba Allison Transmission, Inc · NSN 5331-00-737-4265 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-737-4265 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-737-4265. Primary manufacturer part number: 6750558.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.063 INCHES NOMINAL IN
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • 5 verified cross-references
  • Primary manufacturer: Allison Transmission Inc Dba Allison Transmission, Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-737-4265, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 2 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-00-737-4265
Primary Part Number6750558
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerAllison Transmission Inc Dba Allison Transmission, Inc
StatusCANCELLED
Cross-Sectional Height0.063 INCHES NOMINAL IN
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
4820-00-968-55453743 INTERCHANGEABLE
Disk,valve
Husco International Inc
5310-01-430-404974B059529-201 INTERCHANGEABLE
Washer,key
The Boeing Company Div Defense
Cross-Reference Index
Part NumberManufacturer
A12666 Cnh Industrial America Llc Dba Cnh America (USA)
6750558 General Motors Corp (USA)
5330007374265 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
6750558 PRIMARY Allison Transmission Inc Dba Allison Transmission, Inc (USA)
7374265 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
4820-00-968-5545INTERCHANGEABLE
DISK,VALVE
3743
5310-01-430-4049INTERCHANGEABLE
WASHER,KEY
74B059529-201

Frequently Asked Questions

What is NSN 5331-00-737-4265?

NSN 5331-00-737-4265 is a O-Ring, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-737-4265?

NSN 5331-00-737-4265 has 5 cross-referenced part numbers: A12666 (Cnh Industrial America Llc Dba Cnh America), 6750558 (General Motors Corp), 5330007374265 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee), 6750558 (Allison Transmission Inc Dba Allison Transmission, Inc), 7374265 (U S Army Tank Automotive Command Amsta-Im-Mm).

What NSN replaces 5331-00-737-4265?

There are 2 known substitutes for 5331-00-737-4265: 4820-00-968-5545, 5310-01-430-4049. Verify interchangeability with system specifications before substitution.

What are the specifications of 6750558?

Key specifications for 6750558: Cross-Sectional Height: 0.063 INCHES NOMINAL IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-00-737-4265 still in active supply?

NSN 5331-00-737-4265 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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