The Valve,fire Extinguisher, cataloged under National Stock Number 4210-01-443-5137, is classified within Federal Supply Class 4210 (Firefighting Equipment) of the Fire Fighting, Rescue, and Safety Equipment group. The manufacturer of record is Kidde Technologies Inc Dba Kidde Dual Spectrum Div Kidde Dual Spectrum. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4210-01-443-5137 |
| Primary Part Number | 474000-404 |
| Item Name | Valve,fire Extinguisher |
| FSC / FSG | 4210 / 42 — Firefighting Equipment |
| Manufacturer | Kidde Technologies Inc Dba Kidde Dual Spectrum Div Kidde Dual Spectrum |
| Status | ACTIVE |
| Inlet Nominal Thread Size | 1.875 INCHES IN |
| Outlet Thread Series Designator | UN |
| Inlet Connection Type | THREADED INTERNAL TUBE |
| Outlet Connection Type | THREADED INTERNAL TUBE |
| Inlet Thread Series Designator | UN |
| Outlet Nominal Thread Size | 1.875 INCHES IN |
| 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 |
|---|---|
| 474000-404 PRIMARY | Kidde Technologies Inc Dba Kidde Dual Spectrum Div Kidde Dual Spectrum (USA) |
| Reference | Meaning |
|---|---|
| 407946 | 5/9 Secondary reference Raytheon Company Dba Raytheon |
| 283432-9004 | 5/9 Secondary reference Kidde Technologies Inc Dba Kidde Dual Spectrum Div Kidde Dual Spectrum |
NSN 4210-01-443-5137 is a Valve,fire Extinguisher, manufactured by Kidde Technologies Inc Dba Kidde Dual Spectrum Div Kidde Dual Spectrum, classified under FSC 4210, Firefighting Equipment. Status: active.
NSN 4210-01-443-5137 has 1 manufacturer part number on file: 474000-404 (Kidde Technologies Inc Dba Kidde Dual Spectrum Div Kidde Dual Spectrum).
Key specifications for 474000-404: Inlet Nominal Thread Size: 1.875 INCHES IN; Outlet Thread Series Designator: UN; Inlet Connection Type: THREADED INTERNAL TUBE; End Item Identification: 2320-01-344-9887. 6 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.