NSN 4820-01-257-2260 SS4PDM4F4, SS-4PDM4-F4, 44613140001
Product Details | STOP-CHECK VALVE
4820-01-257-2260 A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also VALVE (1), LIFT-CHECK and VALVE (1), STOP-LIFT-CHECK.20248100015Valves, Powered48200018Valves, Nonpowered
Part Alternates: SS4PDM4F4, SS-4PDM4-F4, 44613140001, 44613-140-00-1, 4820-01-257-2260, 01-257-2260, 4820012572260, 012572260
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 16 JUN 1987 | 01-257-2260 | 05486 ( VALVE, STOP-CHECK ) |
Drawings & Photos | NSN 4820-01-257-2260
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Technical Data | NSN 4820-01-257-2260
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL AND STEEL COMP 630 OVERALL |
| STYLE DESIGNATOR | E1 STRAIGHT THRU |
| MAXIMUM OPERATING PRESSURE | 6000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MAXIMUM OPERATING TEMP | 250.0 DEG FAHRENHEIT SINGLE RESPONSE |
| VALVE OPERATION METHOD | MANUAL |
| CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END UNTHREADED INTERNAL PIPE 2ND END |
| CONNECTION STYLE | B46B PLAIN 1ST END B1B SWIVEL NUT, INVERTED FLARE 2ND END |
| NOMINAL PIPE SIZE ACCOMMODATED | 0.250 INCHES ALL ENDS |
| THREAD SERIES DESIGNATOR | NPT 1ST END |
| NOMINAL THREAD SIZE | 0.250 INCHES 1ST END |
| THREAD DIRECTION | RIGHT-HAND 1ST END |
| MOUNTING POSITION | HORIZONTAL |
| BONNET TYPE | INSIDE SPRING |
| BONNET ATTACHMENT METHOD | THREADED |
| SUPPLEMENTARY FEATURES | FLOW CONTROL DEVICE: STEM |
Restrictions/Controls & Freight Information | NSN 4820-01-257-2260
| Category | Code | Description |
|---|---|---|
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Precious Metals Indicator Code: | U | Precious metal type is unknown |
| Criticality Code: | X | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||