The Hose Assembly,air Duct,air Breat, cataloged under National Stock Number 4240-01-438-8410, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-438-8410 |
| Primary Part Number | 1586AS304-2 |
| Item Name | Hose Assembly,air Duct,air Breat |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| 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 |
|---|---|
| 1586AS304-2 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| M1006-75 | 3/2 Design control — primary reference U.S. Government activity |
| 1028-75 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4240-01-438-8410 is a Hose Assembly,air Duct,air Breat, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-438-8410 has 1 manufacturer part number on file: 1586AS304-2 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 1586AS304-2: End Item Identification: PREPROVISIONING SUPPORT NAVICP IS POE. 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.