The O-Ring, cataloged under National Stock Number 5331-01-565-5386, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels (CAGE S3002); Caterpillar Inc Div Caterpillar Defense (CAGE 11083); General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp (CAGE 1EFH8) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-565-5386 |
| Primary Part Number | 227-5904 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 0744622 | General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels (CHE) |
| 227-5904 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 2000346 | General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp (USA) |
| Reference | Meaning |
|---|---|
| 5331PL2128896 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 22KP589 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 5331-01-565-5386 is a O-Ring, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-565-5386 has 3 manufacturer part numbers on file: 0744622 (General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels), 227-5904 (Caterpillar Inc Div Caterpillar Defense), 2000346 (General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp).
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.