PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

509-0091O-Ring

Cummins Power Generation Inc. · NSN 5331-01-264-6392 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-264-6392 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-264-6392. Primary manufacturer part number: 509-0091.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Cummins Power Generation Inc.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-264-6392, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Cummins Power Generation Inc.. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersCummins Power Generation Inc. (CAGE 44940)
Technical Specifications
ParameterValue
NSN5331-01-264-6392
Primary Part Number509-0091
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCummins Power Generation Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5330-00-088-6372509-91 INTERCHANGEABLE
Seal,anti Flicker
Cummins Power Generation Inc.
Cross-Reference Index
Part NumberManufacturer
509-0091 PRIMARY Cummins Power Generation Inc. (USA)
Related Parts
5330-00-088-6372INTERCHANGEABLE
SEAL,ANTI FLICKER
509-91

Frequently Asked Questions

What is NSN 5331-01-264-6392?

NSN 5331-01-264-6392 is a O-Ring, manufactured by Cummins Power Generation Inc., classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-264-6392?

NSN 5331-01-264-6392 has 1 cross-referenced part number: 509-0091 (Cummins Power Generation Inc.).

What NSN replaces 5331-01-264-6392?

There is 1 known substitute for 5331-01-264-6392: 5330-00-088-6372. Verify interchangeability with system specifications before substitution.

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