The Valve,breathing Apparatus, cataloged under National Stock Number 4220-01-419-3929, is classified within Federal Supply Class 4220 (Marine Lifesaving and Diving Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Swagelok Co. Government technical data includes 1 specification, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4220-01-419-3929 |
| Primary Part Number | SS-3NBVC04-SC11 |
| Item Name | Valve,breathing Apparatus |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 6314642 | Naval Sea Systems Command (USA) |
| SS-3NBVC04-SC11 PRIMARY | Swagelok Co (USA) |
| Reference | Meaning |
|---|---|
| SS-3NBVCO4-W1 | 5/9 Secondary reference Whitey Co |
NSN 4220-01-419-3929 is a Valve,breathing Apparatus, manufactured by Swagelok Co, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
NSN 4220-01-419-3929 has 2 manufacturer part numbers on file: 6314642 (Naval Sea Systems Command), SS-3NBVC04-SC11 (Swagelok Co).
Key specifications for SS-3NBVC04-SC11: Criticality Code Justification: FEAT; Special Features: UNDERWATER LIFE SUPPORT IAW NAVSEA INSTRUCTION 10560.2B; End Item Identification: MK 3 MOD 0 LIGHT WEIGHT DIVE SYS. 1 specification is 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.