The O-Ring, cataloged under National Stock Number 5331-01-545-4904, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-545-4904 |
| Primary Part Number | AS3581-465 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Cross-Sectional Height | 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Hardness Rating | 90.0 SHORE DUROMETER A NOMINAL |
| Material Document and Classification | SAE AMS7259; MIL-R-83248/2 ASSN STD SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 17.870 INCHES MINIMUM AND 18.040 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| AS3581-465 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| SAE-AS3581 | 3/1 Design control — primary reference Sae International Dba Sae International |
| AS3581-465 | 3/9 Design control — primary reference U.S. Government activity |
| 5793295 FIND 163 | 5/1 Secondary reference Naval Sea Systems Command |
| M83248/2-465 | 5/9 Secondary reference U.S. Government activity |
| 5793301 FIND 150 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 5331-01-545-4904 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-545-4904 has 1 manufacturer part number on file: AS3581-465 (Sae International Dba Sae International).
Key specifications for AS3581-465: Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN; Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL; Material Document and Classification: SAE AMS7259; MIL-R-83248/2 ASSN STD SINGLE MATERIAL RESPONSE; Special Features: HIGH TEMPERATURE FLUID AND COMPRESSION SET RESISTANT, -15 TO 400/500F. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.