The O-Ring, cataloged under National Stock Number 5331-01-279-2233, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Schaeffler Group Usa Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Ina Bearing Co (CAGE 58741); Schaeffler Group Usa Inc (CAGE 0AJV0) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-279-2233 |
| Primary Part Number | F-99328G PIECE 18 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Schaeffler Group Usa Inc |
| 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 |
|---|---|
| 122108-6-4560 | Ina Bearing Co (USA) |
| F-99328G PIECE 18 PRIMARY | Schaeffler Group Usa Inc (USA) |
| Reference | Meaning |
|---|---|
| F-99328F PIECE 18 | 5/9 Secondary reference Ina Bearing Co |
NSN 5331-01-279-2233 is a O-Ring, manufactured by Schaeffler Group Usa Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-279-2233 has 2 manufacturer part numbers on file: 122108-6-4560 (Ina Bearing Co), F-99328G PIECE 18 (Schaeffler Group Usa Inc).
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.