The O-Ring, cataloged under National Stock Number 5331-01-464-8606, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-464-8606 |
| Primary Part Number | ST1946-110 |
| 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 | F |
| Part Number | Manufacturer |
|---|---|
| ST1946-110 | Freudenberg-Nok General Partnership Dba International Seal Co Inc (USA) |
| ST1946-110 | Greene Tweed & Co Inc (USA) |
| ST1946-110 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| ST1946-110 | Acushnet Rubber Company, Inc. Dba Precix (USA) |
| ST1946-110 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| ST1946-110 | 5/9 Secondary reference Electronic Counter Corp |
| 5331PL0658564 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| ST1050-110 | 3/9 Design control — primary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 5331-01-464-8606 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-464-8606 has 5 manufacturer part numbers on file: ST1946-110 (Freudenberg-Nok General Partnership Dba International Seal Co Inc), ST1946-110 (Greene Tweed & Co Inc), ST1946-110 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), ST1946-110 (Acushnet Rubber Company, Inc. Dba Precix), ST1946-110 (Parker-Hannifin Corp Div O-Ring Division).
2 possible matches (shared part number, not a government interchangeability claim): 5331-01-480-3367, 5331-01-670-1709. Verify interchangeability with system specifications before substitution.
Key specifications for ST1946-110: Part Name Assigned by Controlling Agency: O-RING. 0 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.