PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5.1445.0O-Ring

Kaeser Compressors, Inc. · NSN 5331-01-390-7669 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-390-7669 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-390-7669. Primary manufacturer part number: 5.1445.0.
Features
  • O-Ring — FSC 5331
  • 1 verified cross-reference
  • Primary manufacturer: Kaeser Compressors, Inc.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-390-7669, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Kaeser Compressors, Inc.. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersKaeser Compressors, Inc. (CAGE 0S8X8)
Technical Specifications
ParameterValue
NSN5331-01-390-7669
Primary Part Number5.1445.0
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerKaeser Compressors, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2610-00-262-8816 INTERCHANGEABLE
Tire,pneumatic,vehicular
5325-01-116-9577 INTERCHANGEABLE
Ring,retaining
5325-01-521-18591220-80 INTERCHANGEABLE
Ring,retaining
Koehring Cranes, Inc Dba Terex Cranes Div Waverly Operations
Cross-Reference Index
Part NumberManufacturer
5.1445.0 PRIMARY Kaeser Compressors, Inc. (USA)
Related Parts
2610-00-262-8816INTERCHANGEABLE
TIRE,PNEUMATIC,VEHICULAR
5325-01-116-9577INTERCHANGEABLE
RING,RETAINING
5325-01-521-1859INTERCHANGEABLE
RING,RETAINING
1220-80

Frequently Asked Questions

What is NSN 5331-01-390-7669?

NSN 5331-01-390-7669 is a O-Ring, manufactured by Kaeser Compressors, Inc., classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-390-7669?

NSN 5331-01-390-7669 has 1 cross-referenced part number: 5.1445.0 (Kaeser Compressors, Inc.).

What NSN replaces 5331-01-390-7669?

There are 3 known substitutes for 5331-01-390-7669: 2610-00-262-8816, 5325-01-116-9577, 5325-01-521-1859. Verify interchangeability with system specifications before substitution.

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