The O-Ring, cataloged under National Stock Number 5331-01-154-3998, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Parker-Hannifin Corp Div O-Ring Division (CAGE 02697); Parker Hannifin B.v. (CAGE H5472) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-154-3998 |
| Primary Part Number | N0304 3-906 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| 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 |
|---|---|
| N0304 3-906 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 030906N0304C | Parker Hannifin B.v. (NLD) |
| 030906N0304C | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 3-906N304-75 | Parker Hannifin B.v. (NLD) |
| 3-906N304-75 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| CA11307 PIECE 255 | 5/2 Secondary reference U.S. Government activity |
| 3-906N304-75 | 5/9 Secondary reference John Crane, Inc |
| 080-58532-70 | 5/9 Secondary reference U.S. Government activity |
| 1KK529 | 5/9 Secondary reference Oshkosh Corp |
| 3-6PSI-30-5 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 3-906NM304-75 | 5/1 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 231-27-401 | 5/9 Secondary reference U.S. Government activity |
NSN 5331-01-154-3998 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-154-3998 has 5 manufacturer part numbers on file: N0304 3-906 (Parker-Hannifin Corp Div O-Ring Division), 030906N0304C (Parker Hannifin B.v.), 030906N0304C (Parker-Hannifin Corp Div O-Ring Division), 3-906N304-75 (Parker Hannifin B.v.), 3-906N304-75 (Parker-Hannifin Corp Div O-Ring Division).
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.