The O-Ring, cataloged under National Stock Number 5331-00-542-1981, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-542-1981 |
| Primary Part Number | AS3578-275 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Outside Diameter | 10.699 INCHES MINIMUM AND 10.825 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Hardness Rating | 65.0 SHORE DUROMETER A NOMINAL |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Center Hole Diameter | 10.454 INCHES MINIMUM AND 10.514 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AMS 7271H | Society of Automotive Engineers Inc (USA) |
| 2-275 N506-65 | Parker Hannifin Gmbh O-Ring Division (DEU) |
| AS3578-275 PRIMARY | Sae International Dba Sae International (USA) |
| PRP568-275-4024-65 | Parco, Llc (USA) |
| 5331PL0894514 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| MS9021-275 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 2-275 N506-65 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| AMS 7271H | Sae International Dba Sae International (USA) |
| MS9021-275ES | Eriks B.v. (NLD) |
| AS3578-275 | Society of Automotive Engineers Inc (USA) |
| SAE-AS3578 | Sae International Dba Sae International (USA) |
NSN 5331-00-542-1981 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-00-542-1981 has 11 cross-referenced part numbers: AMS 7271H (Society of Automotive Engineers Inc), 2-275 N506-65 (Parker Hannifin Gmbh O-Ring Division), AS3578-275 (Sae International Dba Sae International), PRP568-275-4024-65 (Parco, Llc), 5331PL0894514 (Jednolity Indeks Materialowy - Uniform Material Index) and 6 more.
There are 5 known substitutes for 5331-00-542-1981: 5331-00-579-6518, 5331-00-684-2286, 5331-00-882-7337 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for AS3578-275: Outside Diameter: 10.699 INCHES MINIMUM AND 10.825 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR; Hardness Rating: 65.0 SHORE DUROMETER A NOMINAL; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. 5 total characteristics are documented in the Federal Logistics Information System.