The Parts Kit,regulator Breathing Ga, cataloged under National Stock Number 4240-01-658-1278, is classified within Federal Supply Class 4240 (Safety and Rescue Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-658-1278 |
| Item Name | Parts Kit,regulator Breathing Ga |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Status | ACTIVE |
| Document Type | CATALOG SHEET |
| Accessory Identifying Number | 10163924 PART NO. |
| Component Document Origin | INDUSTRIAL |
| Accessory Controlling Agency | MINE SAFETY APPLIANCES COMPANY,LLC |
| Document Source | 8F723 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 10163924 | 3/9 Design control — primary reference Mine Safety Appliances Company, Llc Dba M S a |
NSN 4240-01-658-1278 is a Parts Kit,regulator Breathing Ga, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
Key specifications for 4240-01-658-1278: Document Type: CATALOG SHEET; Accessory Identifying Number: 10163924 PART NO.; Component Document Origin: INDUSTRIAL; Accessory Controlling Agency: MINE SAFETY APPLIANCES COMPANY,LLC. 5 specifications are 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.
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.