The Ring,safety,breathing Hose, cataloged under National Stock Number 4240-01-392-2900, 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 Interspiro Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4240-01-392-2900 |
| Primary Part Number | 336-100-831 |
| Item Name | Ring,safety,breathing Hose |
| FSC / FSG | 4240 / 42 — Safety and Rescue Equipment |
| Manufacturer | Interspiro Inc |
| Status | ACTIVE |
| Overall Diameter | 34.0 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 6400161-2 | Raytheon Company (USA) |
| 336-100-831 PRIMARY | Interspiro Inc (USA) |
| 6400161-2 | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| 6400161-2 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 4240-01-392-2900 is a Ring,safety,breathing Hose, manufactured by Interspiro Inc, classified under FSC 4240, Safety and Rescue Equipment. Status: active.
NSN 4240-01-392-2900 has 3 manufacturer part numbers on file: 6400161-2 (Raytheon Company), 336-100-831 (Interspiro Inc), 6400161-2 (Raytheon Company Dba Raytheon Co).
Key specifications for 336-100-831: Overall Height: 16.2 MILLIMETERS NOMINAL MM; Overall Diameter: 34.0 MILLIMETERS NOMINAL MM; Special Features: COMPONENT OF NIOSH APPROVAL TC-13F-197; SOLE SOURCE REQUIRED BY STATUTE 6.302; End Item Identification: 4240-01-333-3495. 1 specification is 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.