The Diaphragm,actuator Valve,special, cataloged under National Stock Number 4810-01-646-1639, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Knight Inc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-646-1639 |
| Primary Part Number | 7121051 |
| Item Name | Diaphragm,actuator Valve,special |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Knight Inc |
| Status | ACTIVE |
| Style Designator | FLAT |
| Media for Which Designed | WATER |
| 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 |
|---|---|
| 7121051 PRIMARY | Knight Inc (USA) |
NSN 4810-01-646-1639 is a Diaphragm,actuator Valve,special, manufactured by Knight Inc, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-646-1639 has 1 manufacturer part number on file: 7121051 (Knight Inc).
Key specifications for 7121051: Style Designator: FLAT; Special Features: FOR 0.250 SOLENOID VALVE; Media for Which Designed: WATER; Part Name Assigned by Controlling Agency: REPLACEMENT DIAPHRAGM. 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.