The Valve,flow Control, cataloged under National Stock Number 4810-01-656-4656, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Rtx Corporation Div Pratt & Whitney. 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 | 4810-01-656-4656 |
| Primary Part Number | 4951631 |
| Item Name | Valve,flow Control |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Rtx Corporation Div Pratt & Whitney |
| Status | ACTIVE |
| End Connection Quantity | 2 |
| Valve Operation Method | ELECTRIC MOTOR |
| 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 |
|---|---|
| 4951631 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
NSN 4810-01-656-4656 is a Valve,flow Control, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-656-4656 has 1 manufacturer part number on file: 4951631 (Rtx Corporation Div Pratt & Whitney).
Key specifications for 4951631: End Connection Quantity: 2; Part Name Assigned by Controlling Agency: FLOW CONTROL VALVE ASSEMBLY, AIR TURBINE STARTER;; End Item Identification: AUXILIARY POWER SYSTEM;; Valve Operation Method: ELECTRIC MOTOR. 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.