The O-Ring, cataloged under National Stock Number 5331-01-591-0216, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Aqua Lung Canada Ltd. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5331-01-591-0216 |
| Primary Part Number | BC911237 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Aqua Lung Canada Ltd |
| 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 |
|---|---|
| BC911237 | Aqua Lung Canada Ltd (CAN) |
| Reference | Meaning |
|---|---|
| 820312P | 3/2 Design control — primary reference U.S. Government activity |
NSN 5331-01-591-0216 is a O-Ring, manufactured by Aqua Lung Canada Ltd, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-591-0216 has 1 manufacturer part number on file: BC911237 (Aqua Lung Canada Ltd).
Key specifications for BC911237: Part Name Assigned by Controlling Agency: O-RING; End Item Identification: 4220-01-584-7592;COMBATANT DIVER VEST (CDV). 0 specifications are documented in the U.S. Government catalog.
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.