The O-Ring, cataloged under National Stock Number 5331-01-616-4261, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is General Dynamics Land Systems Inc.. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | General Dynamics Land Systems Inc. (CAGE 13160) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-616-4261 |
| Primary Part Number | 16101857-001 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | General Dynamics Land Systems Inc. |
| 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 |
|---|---|
| 16101857-001 PRIMARY | General Dynamics Land Systems Inc. (USA) |
| Reference | Meaning |
|---|---|
| 16101857 | D/9 Drawing number reference only General Dynamics Land Systems Inc. |
NSN 5331-01-616-4261 is a O-Ring, manufactured by General Dynamics Land Systems Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-616-4261 has 1 manufacturer part number on file: 16101857-001 (General Dynamics Land Systems 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.