The O-Ring, cataloged under National Stock Number 5331-01-228-6166, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Bristol Fluid Systems Technologies Ltd. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Bristol Fluid Systems Technologies Ltd (CAGE U5940) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-228-6166 |
| Primary Part Number | T-9K-7 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Bristol Fluid Systems Technologies Ltd |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| T-9K-7 | Bristol Fluid Systems Technologies Ltd (GBR) |
| Reference | Meaning |
|---|---|
| T-9K-7 | 3/9 Design control — primary reference Whitey Co |
| T-9K-7 | 5/9 Secondary reference Swagelok Co |
NSN 5331-01-228-6166 is a O-Ring, manufactured by Bristol Fluid Systems Technologies Ltd, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-228-6166 has 1 manufacturer part number on file: T-9K-7 (Bristol Fluid Systems Technologies Ltd).
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.