PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

32-7964O-Ring

Aqua-Chem, Inc. Dba Aqua-Chem Inc · NSN 5331-01-476-7587 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-476-7587 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-476-7587. Primary manufacturer part number: 32-7964.
Features
  • O-Ring — FSC 5331
  • Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL
  • Specification/standard Data: MIL-G-21610 GOVERNMENT SPECIFICATION
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
  • 2 verified cross-references
  • Primary manufacturer: Aqua-Chem, Inc. Dba Aqua-Chem 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 5331-01-476-7587, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Aqua-Chem, Inc. Dba Aqua-Chem Inc. Government technical data includes 3 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-476-7587
Primary Part Number32-7964
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerAqua-Chem, Inc. Dba Aqua-Chem Inc
StatusACTIVE
Hardness Rating70.0 SHORE DUROMETER A NOMINAL
Specification/standard DataMIL-G-21610 GOVERNMENT SPECIFICATION
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3120-00-540-5827327964 INTERCHANGEABLE
Bearing,plain,spherical
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5940-00-825-5816MS17143-17 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
2510-01-548-7027 INTERCHANGEABLE
Cowl,hood,vehicular
Cross-Reference Index
Part NumberManufacturer
32-7964 PRIMARY Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA)
32-7964 Aqua-Chem, Inc. (USA)
Related Parts
3120-00-540-5827INTERCHANGEABLE
BEARING,PLAIN,SPHERICAL
327964
5940-00-825-5816INTERCHANGEABLE
TERMINAL,LUG
MS17143-17
2510-01-548-7027INTERCHANGEABLE
COWL,HOOD,VEHICULAR

Frequently Asked Questions

What is NSN 5331-01-476-7587?

NSN 5331-01-476-7587 is a O-Ring, manufactured by Aqua-Chem, Inc. Dba Aqua-Chem Inc, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-476-7587?

NSN 5331-01-476-7587 has 2 cross-referenced part numbers: 32-7964 (Aqua-Chem, Inc. Dba Aqua-Chem Inc), 32-7964 (Aqua-Chem, Inc.).

What NSN replaces 5331-01-476-7587?

There are 3 known substitutes for 5331-01-476-7587: 3120-00-540-5827, 5940-00-825-5816, 2510-01-548-7027. Verify interchangeability with system specifications before substitution.

What are the specifications of 32-7964?

Key specifications for 32-7964: End Item Identification: MTS; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Part Name Assigned by Controlling Agency: GASKET(SPECIAL O-RING); Specification/standard Data: MIL-G-21610 GOVERNMENT SPECIFICATION. 5 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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