The Breathing Apparatus,oxygen Gener, cataloged under National Stock Number 4240-01-458-2152, 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 Ocenco Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-458-2152 |
| Primary Part Number | 940011 |
| Item Name | Breathing Apparatus,oxygen Gener |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Ocenco Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 940011 PRIMARY | Ocenco Inc (USA) |
| Reference | Meaning |
|---|---|
| M-20.2T | 5/9 Secondary reference Ocenco Inc |
| 940011 | 5/9 Secondary reference Mine Safety Appliances Company |
NSN 4240-01-458-2152 is a Breathing Apparatus,oxygen Gener, manufactured by Ocenco Inc, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-458-2152 has 1 manufacturer part number on file: 940011 (Ocenco Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-520-5799, 6145-01-664-9324. Verify interchangeability with system specifications before substitution.
Key specifications for 940011: Special Features: TRAINER WITH TWO EXTRA MOUTHPIECES IN A LIGHT BLUE SECONDARY CONTAINER, TEACHES DONNING FROM BOTH THE WORN AND STORED POSITION. 0 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.