The O-Ring, cataloged under National Stock Number 5331-01-418-2971, 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 7 commercial cross-references from 3 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 | 5331-01-418-2971 |
| Primary Part Number | AS3581-142 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| Hardness Rating | 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM |
| Center Hole Diameter | 2.342 INCHES MINIMUM AND 2.382 INCHES MAXIMUM IN |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Temp Rating | -15.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AMS7259 | Sae International Dba Sae International (USA) |
| M83248/2-142 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| AS3581-142 PRIMARY | Sae International Dba Sae International (USA) |
| SAE-AS3581 | Sae International Dba Sae International (USA) |
| AMS7259 | Society of Automotive Engineers Inc (USA) |
| AS3581-142 | Society of Automotive Engineers Inc (USA) |
| MIL-R-83248 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5331-01-418-2971 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-418-2971 has 7 cross-referenced part numbers: AMS7259 (Sae International Dba Sae International), M83248/2-142 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), AS3581-142 (Sae International Dba Sae International), SAE-AS3581 (Sae International Dba Sae International), AMS7259 (Society of Automotive Engineers Inc) and 2 more.
There are 2 known substitutes for 5331-01-418-2971: 5331-01-104-5943, 5330-01-241-1933. Verify interchangeability with system specifications before substitution.
Key specifications for AS3581-142: Material: RUBBER FLUOROCARBON CLASS FPM; Hardness Rating: 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM; End Item Identification: HX UNIQUE; Center Hole Diameter: 2.342 INCHES MINIMUM AND 2.382 INCHES MAXIMUM IN. 6 total characteristics are documented in the Federal Logistics Information System.