NSN 5331-01-173-8781 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-173-8781. Primary manufacturer part number: 2-239.
5331-01-173-8781 — O-Ring illustration
Features
O-Ring — FSC 5331
Center Hole Diameter: 3.581 INCHES MINIMUM AND 3.637 INCHES MAXIMUM IN
Material: RUBBER
Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
3 verified cross-references
Primary manufacturer: Parker-Hannifin Corp Div O-Ring Division
Applications
Fluid containment and leak prevention
Pressure boundary maintenance
Environmental sealing
Applications requiring Rubber construction
General Description
The O-Ring, cataloged under National Stock Number 5331-01-173-8781, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
NSN 5331-01-173-8781 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331 (O-Ring). Status: active.
What are the part numbers for NSN 5331-01-173-8781?
NSN 5331-01-173-8781 has 3 cross-referenced part numbers: 2-239 (Parker-Hannifin Corp Div O-Ring Division), 999F0444 PC 51 (Circor Naval Solutions Llc Dba Warren Pumps), 12704114-6 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).
What NSN replaces 5331-01-173-8781?
There are 12 known substitutes for 5331-01-173-8781: 6150-00-124-2395, 4520-00-413-4460, 5310-00-638-2870 and 9 more. Verify interchangeability with system specifications before substitution.
What are the specifications of 2-239?
Key specifications for 2-239: Center Hole Diameter: 3.581 INCHES MINIMUM AND 3.637 INCHES MAXIMUM IN; Material: RUBBER; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 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.