The Cylinder and Valve Assembly, cataloged under National Stock Number 4240-01-143-7840, 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 Honeywell Safety Products Usa, Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4240-01-143-7840 |
| Primary Part Number | 915145 |
| Item Name | Cylinder and Valve Assembly |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Honeywell Safety Products Usa, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | 1 9151-57 CYLINDER,AIR SUPPLY AND 1 9201-00 VALVE ASSY,AIR CYLINDER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Hazardous per DLA record (HMIC Y) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 915145 PRIMARY | Honeywell Safety Products Usa, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 9151-45 | 5/9 Secondary reference U.S. Government activity |
| 9151-45 | 3/9 Design control — primary reference Survivair Corp Sub of Comasec Inc |
| 9151-58 | 5/9 Secondary reference U.S. Government activity |
NSN 4240-01-143-7840 is a Cylinder and Valve Assembly, manufactured by Honeywell Safety Products Usa, Inc., classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-143-7840 has 1 manufacturer part number on file: 915145 (Honeywell Safety Products Usa, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-181-8573. Verify interchangeability with system specifications before substitution.
Key specifications for 915145: General Characteristics Item Description: 1 9151-57 CYLINDER,AIR SUPPLY AND 1 9201-00 VALVE ASSY,AIR CYLINDER; End Item Identification: U S DIVERS CO. FSCM 94120 P/N 9038-23. 1 specification is 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.