The O-Ring, cataloged under National Stock Number 5331-01-421-9888, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Federal-Mogul Corp Frankfort Plant. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Federal-Mogul Corp Frankfort Plant (CAGE 3L231) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-421-9888 |
| Primary Part Number | 518958PC11 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Federal-Mogul Corp Frankfort Plant |
| 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 |
|---|---|
| 518958PC11 PRIMARY | Federal-Mogul Corp Frankfort Plant (USA) |
| Reference | Meaning |
|---|---|
| 518958PC11 | C/1 Advisory reference — outside the item-of-supply concept Fuji Trading America Inc |
| 518958PC11 | 5/9 Secondary reference Kamewa Usa Inc |
| 518958PC11 | 5/9 Secondary reference Kamewa |
| 518958PC11 | 5/9 Secondary reference Rolls-Royce Ab |
NSN 5331-01-421-9888 is a O-Ring, manufactured by Federal-Mogul Corp Frankfort Plant, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-421-9888 has 1 manufacturer part number on file: 518958PC11 (Federal-Mogul Corp Frankfort Plant).
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.