The Valve,whistle, cataloged under National Stock Number 4810-01-421-0617, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Kockum Sonics Aktiebolag. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4810-01-421-0617 |
| Primary Part Number | TV784-110VAC |
| Item Name | Valve,whistle |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Kockum Sonics Aktiebolag |
| Status | ACTIVE |
| Voltage in Volts and Current Type | 110.0 AC |
| General Characteristics Item Description | INCLUDES LANYARD FOR STAND-BY OPERATION AND 2 SOLENOIDS FOR NORMAL AND EMERGENCY OPERATION |
| 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 |
|---|---|
| TV784-110VAC PRIMARY | Kockum Sonics Aktiebolag (SWE) |
| Reference | Meaning |
|---|---|
| TV784-110VAC | 3/9 Design control — primary reference Kockum Sonics Ab |
NSN 4810-01-421-0617 is a Valve,whistle, manufactured by Kockum Sonics Aktiebolag, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-421-0617 has 1 manufacturer part number on file: TV784-110VAC (Kockum Sonics Aktiebolag).
Key specifications for TV784-110VAC: Overall Height: 7.870 INCHES NOMINAL IN; Voltage in Volts and Current Type: 110.0 AC; General Characteristics Item Description: INCLUDES LANYARD FOR STAND-BY OPERATION AND 2 SOLENOIDS FOR NORMAL AND EMERGENCY OPERATION; Overall Length: 7.090 INCHES NOMINAL IN. 2 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.