PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

145641O-Ring

Cummins Inc. · NSN 5331-00-809-2666 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-809-2666 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-809-2666. Primary manufacturer part number: 145641.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 8.945 INCHES MINIMUM AND 9.005 INCHES MAXIMUM IN
  • Material: RUBBER SYNTHETIC
  • Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
  • 1 verified cross-reference
  • Primary manufacturer: Cummins Inc.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-809-2666, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-809-2666
Primary Part Number145641
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCummins Inc.
StatusACTIVE
Center Hole Diameter8.945 INCHES MINIMUM AND 9.005 INCHES MAXIMUM IN
MaterialRUBBER SYNTHETIC
Cross-Sectional Height0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-151-9140 INTERCHANGEABLE
Ball,bearing
5310-01-099-7008145641 INTERCHANGEABLE
Nut
Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
Cross-Reference Index
Part NumberManufacturer
145641 PRIMARY Cummins Inc. (USA)
Related Parts
3110-00-151-9140INTERCHANGEABLE
BALL,BEARING
5310-01-099-7008INTERCHANGEABLE
NUT
145641

Frequently Asked Questions

What is NSN 5331-00-809-2666?

NSN 5331-00-809-2666 is a O-Ring, manufactured by Cummins Inc., classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-809-2666?

NSN 5331-00-809-2666 has 1 cross-referenced part number: 145641 (Cummins Inc.).

What NSN replaces 5331-00-809-2666?

There are 2 known substitutes for 5331-00-809-2666: 3110-00-151-9140, 5310-01-099-7008. Verify interchangeability with system specifications before substitution.

What are the specifications of 145641?

Key specifications for 145641: Center Hole Diameter: 8.945 INCHES MINIMUM AND 9.005 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC; Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN. 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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