The O-Ring, cataloged under National Stock Number 5331-01-673-3518, 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 2 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-673-3518 |
| Primary Part Number | AS3581-384 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Outside Diameter | 14.905 INCHES MINIMUM AND 15.045 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 |
|---|---|
| AS3581-384 PRIMARY | Sae International Dba Sae International (USA) |
| 01032-0087 ITEM 28 | Timken Gears & Services Inc. Div Philadelphia Gear (USA) |
| 36000-1905 | Timken Gears & Services Inc. Div Philadelphia Gear (USA) |
| Reference | Meaning |
|---|---|
| SAE-AS3581 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 5331-01-673-3518 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-673-3518 has 3 manufacturer part numbers on file: AS3581-384 (Sae International Dba Sae International), 01032-0087 ITEM 28 (Timken Gears & Services Inc. Div Philadelphia Gear), 36000-1905 (Timken Gears & Services Inc. Div Philadelphia Gear).
Key specifications for AS3581-384: Outside Diameter: 14.905 INCHES MINIMUM AND 15.045 INCHES MAXIMUM IN; Part Name Assigned by Controlling Agency: O-RING; Material: RUBBER FLUOROCARBON CLASS FPM. 2 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.