The Exhalation Membrane, cataloged under National Stock Number 4220-01-590-6958, 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 Interspiro Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4220-01-590-6958 |
| Primary Part Number | 30 005-51 |
| Item Name | Exhalation Membrane |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Manufacturer | Interspiro Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 30 005-51 PRIMARY | Interspiro Inc (USA) |
NSN 4220-01-590-6958 is a Exhalation Membrane, manufactured by Interspiro Inc, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
NSN 4220-01-590-6958 has 1 manufacturer part number on file: 30 005-51 (Interspiro Inc).
Key specifications for 30 005-51: Special Features: EXHALATION MEMBRANE FOR THE DIVATOR BREATHING VALVE, PACK OF 5. 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.
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.