The Regulator,breathing Gas Pressure, cataloged under National Stock Number 4220-01-641-4921, 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 Scubapro. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4220-01-641-4921 |
| Primary Part Number | MK17 |
| Item Name | Regulator,breathing Gas Pressure |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Manufacturer | Scubapro |
| Status | ACTIVE |
| Pressure Gage | NOT INCLUDED |
| Installation Design | PORTABLE |
| 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 |
|---|---|
| MK17 PRIMARY | Scubapro (USA) |
NSN 4220-01-641-4921 is a Regulator,breathing Gas Pressure, manufactured by Scubapro, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
NSN 4220-01-641-4921 has 1 manufacturer part number on file: MK17 (Scubapro).
1 possible match (shared part number, not a government interchangeability claim): 6920-01-702-9139. Verify interchangeability with system specifications before substitution.
Key specifications for MK17: Pressure Gage: NOT INCLUDED; Special Features: INCLUDES ADAPTER AND BUDDY TEE CONNECTOR; Part Name Assigned by Controlling Agency: DEMAND REGUALTOR,LOW PRESSURE TYPE; Installation Design: PORTABLE. 2 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.