The Regulator,breathing Gas Pressure, cataloged under National Stock Number 4220-01-299-7455, is classified within Federal Supply Class 4220 (Marine Lifesaving and Diving Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Regulator,breathing Gas Pressure |
| FSC / FSG | 4220 — Marine Lifesaving and Diving Equipment (FSG 42) |
| Parameter | Value |
|---|---|
| NSN | 4220-01-299-7455 |
| Item Name | Regulator,breathing Gas Pressure |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Reference | Meaning |
|---|---|
| 1064-15 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4220-01-299-7455 is a Regulator,breathing Gas Pressure, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5930-01-533-6309, 4520-01-562-0784. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4220-01-299-7455 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.