The Sub Assy Mask Scba, cataloged under National Stock Number 4240-01-526-2284, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Mine Safety Appliances Company. 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 | 4240-01-526-2284 |
| Primary Part Number | 10024074 |
| Item Name | Sub Assy Mask Scba |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Mine Safety Appliances Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 10024074 PRIMARY | Mine Safety Appliances Company (USA) |
NSN 4240-01-526-2284 is a Sub Assy Mask Scba, manufactured by Mine Safety Appliances Company, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-526-2284 has 1 manufacturer part number on file: 10024074 (Mine Safety Appliances Company).
1 possible match (shared part number, not a government interchangeability claim): 6220-01-558-6795. Verify interchangeability with system specifications before substitution.
Key specifications for 10024074: Overall Height: 2.000 INCHES NOMINAL IN; Overall Length: 7.500 INCHES NOMINAL IN; Overall Width: 6.000 INCHES NOMINAL IN; Special Features: HAVING LARGE-DIAMETER AMPLIFIER SPEAKER 50MM; WATER RESISTANT AGAINST BLOWING RAIN; INTERNAL MICROPHONE IS SUBMERSIBLE; AMPLIFIER IS REMOVABLE/TRANSFERABLE; CHEMICAL RESISTANT MM. 0 specifications are documented in the U.S. Government catalog.
Hazardous per DLA record (HMIC Y). 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.