NSN 4820-00-979-4257
Part Details | GATE VALVE
4820-00-979-4257 A valve having a flat or tapered disk (gate) which moves transversely to the axis of flow by rotating or sliding movements of the stem to open or close the orifice. It may also contain an oval or rectangular shaped slide which may be manually, motor, or pressure operated through the means of an arm or arm assembly. The body flange may be designed to accommodate tube type connectors. It may or may not contain thermal relief features. Includes valve (gate) specifically designed for the control of fluid systems in aircraft or missiles.
Alternate Parts: 950S, F56D112 IN., F-56D-1-1/2 IN., 4820-00-979-4257, 00-979-4257, 4820009794257, 009794257
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | OCT 14, 1966 | 00-979-4257 | 05482 ( VALVE, GATE ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 4820-00-979-4257
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 950S | 38056 | ASHCROFT INC. |
| F-56D-1-1/2 IN. | 86520 | CONBRACO INDUSTRIES INCR-P AND C VALVE DIV |
Technical Data | NSN 4820-00-979-4257
| Characteristic | Specifications |
|---|---|
| MAXIMUM OPERATING PRESSURE AND MEDIA FOR WHICH DESIGNED | +AC+2000.0 POUNDS PER SQUARE INCH |
| MAXIMUM OPERATING TEMP AND MEDIA FOR WHICH DESIGNED | FAC+100.0 DEG FAHRENHEIT |
| VALVE OPERATION METHOD | MANUAL |
| CONNECTION TYPE | THREADED INTERNAL PIPE |
| THREAD SERIES DESIGNATOR | NPT |
| NOMINAL THREAD SIZE | 1.500 INCHES |
| STEM TYPE | RISING |
| BONNET TYPE | OUTSIDE SCREW-YOKE |
| BONNET ATTACHMENT METHOD | BOLTED |
| FEATURES PROVIDED | BONNET PACKING |
| SPECIAL FEATURES | 1.500 IN. PIPE SIZE;R.H. THD;11-1/2 THDS PER INCH |