The Nozzle,spray,fluid-Emulsion, cataloged under National Stock Number 4730-01-557-8604, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Kidde-Fenwal, Llc. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-557-8604 |
| Primary Part Number | WK-264490-280 |
| Item Name | Nozzle,spray,fluid-Emulsion |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Kidde-Fenwal, Llc |
| Status | ACTIVE |
| Spray Type | FULL CONE |
| Spray Angle in Deg | 90.0 |
| Inlet Connection Type | THREADED |
| Orifice Diameter | 28.000 INCHES NOMINAL IN |
| Inlet Connection Size | 11.500 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| WK-264490-280 PRIMARY | Kidde-Fenwal, Llc (USA) |
| 26449028 | Kidde-Fenwal, Llc (USA) |
| Reference | Meaning |
|---|---|
| WK-264490-280 | 5/9 Secondary reference Kidde Inc Walter Kidde Div Industrial and Marine Fire Protection Systems |
NSN 4730-01-557-8604 is a Nozzle,spray,fluid-Emulsion, manufactured by Kidde-Fenwal, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-557-8604 has 2 manufacturer part numbers on file: WK-264490-280 (Kidde-Fenwal, Llc), 26449028 (Kidde-Fenwal, Llc).
Key specifications for WK-264490-280: Spray Type: FULL CONE; Spray Angle in Deg: 90.0; Overall Length: 2.500 INCHES NOMINAL IN; Inlet Connection Type: THREADED. 5 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.