The Adapter,air Hose,regulator, cataloged under National Stock Number 4240-01-485-7998, 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 Sea Systems Command. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4240-01-485-7998 |
| Primary Part Number | 6314788-2 |
| Item Name | Adapter,air Hose,regulator |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Overall Diameter | 1.250 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 6314788-2 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6314788 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4240-01-485-7998 is a Adapter,air Hose,regulator, manufactured by Naval Sea Systems Command, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-485-7998 has 1 manufacturer part number on file: 6314788-2 (Naval Sea Systems Command).
Key specifications for 6314788-2: Overall Diameter: 1.250 INCHES NOMINAL IN; Overall Length: 1.880 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: CHARGING ADAPTER ASSEMBLY; End Item Identification: BREATHING AIR REDUCING STATION (BARS). 2 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.