PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

372-AO-Ring

Atlantic India Rubber Co Inc · NSN 5331-01-094-2210 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-094-2210 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-094-2210. Primary manufacturer part number: 372-A.
Features
  • O-Ring — FSC 5331
  • Color: BLACK
  • Temp Rating: -40.0 FAHRENHEIT AND 240.0 FAHRENHEIT DEGF
  • Center Hole Diameter: 2.985 INCHES MINIMUM AND 3.015 INCHES MAXIMUM IN
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY JOINT QTY ANID DIM.
  • Cross-Sectional Height: 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
  • Material: RUBBER CHLOROPRENE CLASS CR
  • 2 verified cross-references
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 5331-01-094-2210, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Atlantic India Rubber Co Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-094-2210
Primary Part Number372-A
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerAtlantic India Rubber Co Inc
StatusACTIVE
ColorBLACK
Temp Rating-40.0 FAHRENHEIT AND 240.0 FAHRENHEIT DEGF
Center Hole Diameter2.985 INCHES MINIMUM AND 3.015 INCHES MAXIMUM IN
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY JOINT QTY ANID DIM.
Cross-Sectional Height0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
MaterialRUBBER CHLOROPRENE CLASS CR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5985-00-068-37822557 INTERCHANGEABLE
Coupler,directional
Aeg Canada Inc
3110-00-100-0298258778 INTERCHANGEABLE
Cup,tapered Roller Bearing
Acf Industries Inc
5935-00-665-7267 INTERCHANGEABLE
Connector,plug,electrical
5999-01-243-96545688K51 INTERCHANGEABLE
Magnet,permanent
Mcmaster-Carr Supply Co
Cross-Reference Index
Part NumberManufacturer
372-A Atlantic India Rubber Co Inc (USA)
21008043-101 Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
Related Parts
5985-00-068-3782INTERCHANGEABLE
COUPLER,DIRECTIONAL
2557
3110-00-100-0298INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
258778
5935-00-665-7267INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5999-01-243-9654INTERCHANGEABLE
MAGNET,PERMANENT
5688K51

Frequently Asked Questions

What is NSN 5331-01-094-2210?

NSN 5331-01-094-2210 is a O-Ring, manufactured by Atlantic India Rubber Co Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-094-2210?

NSN 5331-01-094-2210 has 2 cross-referenced part numbers: 372-A (Atlantic India Rubber Co Inc), 21008043-101 (Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems).

What NSN replaces 5331-01-094-2210?

There are 4 known substitutes for 5331-01-094-2210: 5985-00-068-3782, 3110-00-100-0298, 5935-00-665-7267 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 372-A?

Key specifications for 372-A: Color: BLACK; Temp Rating: -40.0 FAHRENHEIT AND 240.0 FAHRENHEIT DEGF; Center Hole Diameter: 2.985 INCHES MINIMUM AND 3.015 INCHES MAXIMUM IN; Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY JOINT QTY ANID DIM.. 6 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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