The O-Ring, cataloged under National Stock Number 5331-01-125-9041, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Freudenberg-Nok General Partnership Dba International Seal Co Inc. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). 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); 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 | 5331-01-125-9041 |
| Primary Part Number | ST1946-008 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Freudenberg-Nok General Partnership Dba International Seal Co Inc |
| 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 |
|---|---|
| ST1946-008 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| ST1946-008 PRIMARY | Freudenberg-Nok General Partnership Dba International Seal Co Inc (USA) |
| ST1946 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| ST1946-008 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| ST1946-008 PRIMARY | Acushnet Rubber Company, Inc. Dba Precix (USA) |
| Reference | Meaning |
|---|---|
| ST1946-008 | 5/9 Secondary reference Rtx Corporation Div Pratt & Whitney |
| V0835 2-008 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| MIL-R-83485/1 | 5/9 Secondary reference U.S. Government activity |
| M83485-1-008 | 5/9 Secondary reference Leonardo Spa Helicopters Division - Production Site |
| M83485-1-008 | 5/1 Secondary reference U.S. Government activity |
| M83485/1-008 | 5/9 Secondary reference U.S. Government activity |
| M83485/1-008 | 5/9 Secondary reference U.S. Government activity |
| ST1946-008 | 5/9 Secondary reference Greene Tweed & Co Inc |
| ST1947-008 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 2-008 V0835-75 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 5331-01-125-9041 is a O-Ring, manufactured by Freudenberg-Nok General Partnership Dba International Seal Co Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-125-9041 has 5 manufacturer part numbers on file: ST1946-008 (Parker-Hannifin Corp Div O-Ring Division), ST1946-008 (Freudenberg-Nok General Partnership Dba International Seal Co Inc), ST1946 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), ST1946-008 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), ST1946-008 (Acushnet Rubber Company, Inc. Dba Precix).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-671-5515. Verify interchangeability with system specifications before substitution.
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.