The O-Ring, cataloged under National Stock Number 5331-01-521-3407, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Society of Automotive Engineers Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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 | 5331-01-521-3407 |
| Primary Part Number | AS3581-904 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Society of Automotive Engineers Inc |
| Status | ACTIVE |
| Center Hole Diameter | 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN |
| Cross-Sectional Height | 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 7259 ASSN STD SINGLE MATERIAL RESPONSE |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| Hardness Rating | 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AS3581-904 | Society of Automotive Engineers Inc (USA) |
NSN 5331-01-521-3407 is a O-Ring, manufactured by Society of Automotive Engineers Inc, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-521-3407 has 1 cross-referenced part number: AS3581-904 (Society of Automotive Engineers Inc).
There are 5 known substitutes for 5331-01-521-3407: 5331-00-167-5172, 5331-01-029-2344, 5331-01-096-8824 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for AS3581-904: Center Hole Diameter: 0.346 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN; Cross-Sectional Height: 0.069 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN; Material Document and Classification: AMS 7259 ASSN STD SINGLE MATERIAL RESPONSE; Material: RUBBER FLUOROCARBON CLASS FPM. 5 total characteristics are documented in the Federal Logistics Information System.