The Facepiece,responder, cataloged under National Stock Number 4240-01-622-7249, 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. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-622-7249 |
| Primary Part Number | M7RHD100D22DAA1 |
| Item Name | Facepiece,responder |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Mine Safety Appliances Company |
| Status | ACTIVE |
| Pressure Rating | ERR-060 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| M7RHD100D22DAA1 PRIMARY | Mine Safety Appliances Company (USA) |
| A-M7RHD100D22DAA1 | Mine Safety Appliances Company (USA) |
| Reference | Meaning |
|---|---|
| M7RHD100D22DAC0 | 3/9 Design control — primary reference Mine Safety Appliances Company |
NSN 4240-01-622-7249 is a Facepiece,responder, manufactured by Mine Safety Appliances Company, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-622-7249 has 2 manufacturer part numbers on file: M7RHD100D22DAA1 (Mine Safety Appliances Company), A-M7RHD100D22DAA1 (Mine Safety Appliances Company).
Key specifications for M7RHD100D22DAA1: Pressure Rating: ERR-060; Special Features: M7 RESPONDER AIRMASK; LESS CYLINDER, LG FP; CARRIER D DOUBLE PULL W/CHEST STRAP; LUMBAR PAD RESCUE BELT ASSY.; SWIVELING; FACEPIECE TYPE B UE HYCAR LARGE; NOSECUP 1 ULTRA ELITE-MEDIUM; HEAD HARNESS 2 SPEED ON LESS NECKSTRAP; End Item Identification: 4240-01-587-6781 M7 RESPONDER SCBA ASSEMBLY P/N 10102292. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4240-01-622-7249 has DEMIL Code B. 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.