The Filter,air,diving Apparatus, cataloged under National Stock Number 4220-01-640-8239, 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 Andi International. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4220-01-640-8239 |
| Primary Part Number | 7-021 |
| Item Name | Filter,air,diving Apparatus |
| FSC / FSG | 4220 / 42 — Marine Lifesaving and Diving Equipment |
| Manufacturer | Andi International |
| Status | ACTIVE |
| Nondefinitive Spec/std Data | 1.6 WEIGHT |
| Material | PLASTIC |
| 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 |
|---|---|
| 7-021 PRIMARY | Andi International (USA) |
NSN 4220-01-640-8239 is a Filter,air,diving Apparatus, manufactured by Andi International, classified under FSC 4220, Marine Lifesaving and Diving Equipment. Status: active.
NSN 4220-01-640-8239 has 1 manufacturer part number on file: 7-021 (Andi International).
Key specifications for 7-021: Overall Width: 10.0 MILLIMETERS NOMINAL MM; Nondefinitive Spec/std Data: 1.6 WEIGHT; Material: PLASTIC. 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.