The O-Ring, cataloged under National Stock Number 5331-01-673-3748, 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. 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); Sae International Dba Sae International (CAGE 0U583); Freudenberg-Nok General Partnership Dba International Seal Co Inc (CAGE 1CN74); Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445); Acushnet Rubber Company, Inc. Dba Precix (CAGE 70106) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-673-3748 |
| Primary Part Number | ST1946-251 |
| 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 D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| ST1946-251 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| M83485/1-251 PRIMARY | Sae International Dba Sae International (USA) |
| ST1946-251 PRIMARY | Freudenberg-Nok General Partnership Dba International Seal Co Inc (USA) |
| ST1946-251 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| ST1946-251 PRIMARY | Acushnet Rubber Company, Inc. Dba Precix (USA) |
NSN 5331-01-673-3748 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-673-3748 has 5 manufacturer part numbers on file: ST1946-251 (Parker-Hannifin Corp Div O-Ring Division), M83485/1-251 (Sae International Dba Sae International), ST1946-251 (Freudenberg-Nok General Partnership Dba International Seal Co Inc), ST1946-251 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), ST1946-251 (Acushnet Rubber Company, Inc. Dba Precix).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5331-01-673-3748 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.