The Breathing Apparatus,self-Contain, cataloged under National Stock Number 4220-01-482-7389, 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 Aerial Machine & Tool Corporation. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4220-01-482-7389 |
| Primary Part Number | CAZ-K04 |
| Item Name | Breathing Apparatus,self-Contain |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Manufacturer | Aerial Machine & Tool Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| CAZ-K04 | Capewell Aerial Systems Llc (USA) |
| CAZ-K04 PRIMARY | Aerial Machine & Tool Corporation (USA) |
| Reference | Meaning |
|---|---|
| 108330 | 3/9 Design control — primary reference U.S. Government activity |
| 108330 | 5/9 Secondary reference Capewell Aerial Systems Llc |
NSN 4220-01-482-7389 is a Breathing Apparatus,self-Contain, manufactured by Aerial Machine & Tool Corporation, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
NSN 4220-01-482-7389 has 2 manufacturer part numbers on file: CAZ-K04 (Capewell Aerial Systems Llc), CAZ-K04 (Aerial Machine & Tool Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-677-2138. Verify interchangeability with system specifications before substitution.
Key specifications for CAZ-K04: Special Features: 20" HOSE; Part Name Assigned by Controlling Agency: AIRMAN EMERGENCY BREATHING SYSTEM (EBS). 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.
NSN 4220-01-482-7389 has DEMIL Code Q. 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.