The O-Ring, cataloged under National Stock Number 5331-01-253-5939, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-253-5939 |
| Primary Part Number | AS3581-132 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Outside Diameter | 1.943 INCHES NOMINAL IN |
| Hardness Rating | 90.0 SHORE DUROMETER A NOMINAL |
| Temp Rating | -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF |
| Elongation Percentage | 100 MAXIMUM |
| Center Hole Diameter | 1.722 INCHES MINIMUM AND 1.752 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AS3581-132 | Society of Automotive Engineers Inc (USA) |
| 5331PL1291629 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| M83248/2-132 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| SAE-AS3581 | Sae International Dba Sae International (USA) |
| AS3581-132 PRIMARY | Sae International Dba Sae International (USA) |
NSN 5331-01-253-5939 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-253-5939 has 5 cross-referenced part numbers: AS3581-132 (Society of Automotive Engineers Inc), 5331PL1291629 (Jednolity Indeks Materialowy - Uniform Material Index), M83248/2-132 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), SAE-AS3581 (Sae International Dba Sae International), AS3581-132 (Sae International Dba Sae International).
There are 2 known substitutes for 5331-01-253-5939: 5331-01-045-5604, 5331-01-286-4695. Verify interchangeability with system specifications before substitution.
Key specifications for AS3581-132: Outside Diameter: 1.943 INCHES NOMINAL IN; Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL; Temp Rating: -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF; Elongation Percentage: 100 MAXIMUM. 7 total characteristics are documented in the Federal Logistics Information System.