The Parts Kit,diving Helmet, cataloged under National Stock Number 4220-01-356-6849, 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 Kirby Morgan Dive Systems Inc. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4220-01-356-6849 |
| Primary Part Number | 525-330 |
| Item Name | Parts Kit,diving Helmet |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Manufacturer | Kirby Morgan Dive Systems Inc |
| Status | ACTIVE |
| Component Quantity | 4 |
| End Item Source | 58366 |
| End Item Name | DIVING HELMENT AND MASK |
| Nonsupply Items and Quantities | 58366 510-491 PACKING,PREFORMED 1; 58366 510-492 PACKING,PREFORMED 1; 58366 520-028 WIPER 1; 58366 535-920 SPRING 1 |
| 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 |
|---|---|
| 525-330 PRIMARY | Kirby Morgan Dive Systems Inc (USA) |
| DE162 | Jfd Australia Pty Ltd James Fisher Australia Pty Ltd (AUS) |
| DE162 | Jfd Ltd (GBR) |
| Reference | Meaning |
|---|---|
| F8281-000002 | 6/9 Informative reference only Forsvarets Materielverk |
| 525-203 | 5/9 Secondary reference Kirby Morgan Dive Systems Inc |
NSN 4220-01-356-6849 is a Parts Kit,diving Helmet, manufactured by Kirby Morgan Dive Systems Inc, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
NSN 4220-01-356-6849 has 3 manufacturer part numbers on file: 525-330 (Kirby Morgan Dive Systems Inc), DE162 (Jfd Australia Pty Ltd James Fisher Australia Pty Ltd), DE162 (Jfd Ltd).
1 possible match (shared part number, not a government interchangeability claim): 6110-01-391-6497. Verify interchangeability with system specifications before substitution.
Key specifications for 525-330: Component Quantity: 4; End Item Source: 58366; End Item Name: DIVING HELMENT AND MASK; Nonsupply Items and Quantities: 58366 510-491 PACKING,PREFORMED 1; 58366 510-492 PACKING,PREFORMED 1; 58366 520-028 WIPER 1; 58366 535-920 SPRING 1. 4 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.