The O-Ring, cataloged under National Stock Number 5331-01-185-8543, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is English Electric Corp. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | English Electric Corp (CAGE 61982) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-185-8543 |
| Primary Part Number | PL-RW/820333-A1 FIND 97 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | English Electric Corp |
| 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 |
|---|---|
| PL-RW/820333-A1 FIND 97 PRIMARY | English Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| PL-RW/820333-A1 FIND 97 | 5/9 Secondary reference David Brown Special Products Ltd |
| PL-RW/820333-A1 FIND 97 | C/1 Advisory reference — outside the item-of-supply concept David Brown Gear Systems Limited |
NSN 5331-01-185-8543 is a O-Ring, manufactured by English Electric Corp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-185-8543 has 1 manufacturer part number on file: PL-RW/820333-A1 FIND 97 (English Electric Corp).
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.