The Coupling Assembly, cataloged under National Stock Number 4240-00-770-0272, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Coupling Assembly |
| FSC / FSG | 4240 — Safety and Rescue Equipment (FSG 42) |
| Manufacturers | Mine Safety Appliances Company (CAGE 55799) |
| Parameter | Value |
|---|---|
| NSN | 4240-00-770-0272 |
| Primary Part Number | 01-47371 |
| Item Name | Coupling Assembly |
| 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 | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 01-47371 PRIMARY | Mine Safety Appliances Company (USA) |
| CS47371 | Mine Safety Appliances Company (USA) |
| Reference | Meaning |
|---|---|
| 2620-482X1RCPC107 | 5/2 Secondary reference U.S. Government activity |
| 8676-94PC7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4240-00-770-0272 is a Coupling Assembly, manufactured by Mine Safety Appliances Company, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-00-770-0272 has 2 manufacturer part numbers on file: 01-47371 (Mine Safety Appliances Company), CS47371 (Mine Safety Appliances Company).
1 possible match (shared part number, not a government interchangeability claim): 1005-01-182-7942. Verify interchangeability with system specifications before substitution.
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.