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National Stock Number:
4820-01-301-7976
Federal Supply Class:
4820
National Item Identification Number:
013017976
Description:
VALVE,STOP-CHECK
Detail:
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.
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Manufacturer Information:
| 1551AS244 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER | | 1551AS244-1 | 30003 | NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER | | SS-445-FP-D-W1 | 02570 | SWAGELOK CO | | 1551AS244-1CP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | | SS-445-FP-D-W1 | 11649 | CAJON CO | | SS-445-FP-D-W1 | 3T9T9 | SWAGELOK CO | | SS-445-FP-D-W1CP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | | SS-445-FP-D-W1 | 66259 | SNO-TRIK CO DIV OF CRAWFORD FITTING CO |
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Techincal Specification:
| MATERIAL | STEEL COMP 316 BODY | | PLASTIC POLYTETRAFLUOROETHYLENE PACKING | | STEEL COMP 440C STEM | | STYLE DESIGNATOR | STRAIGHT THRU | | FLOW CONTROL DEVICE | DISK | | MAXIMUM OPERATING PRESSURE | 5000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MAXIMUM OPERATING TEMP | 150.0 DEG FAHRENHEIT SINGLE RESPONSE | | VALVE OPERATION METHOD | MANUAL | | CONNECTION TYPE | THREADED INTERNAL BOSS ALL ENDS | | CONNECTION STYLE | GASKET SEAL (BOSS) ALL ENDS | | THREAD SERIES DESIGNATOR | UNF ALL ENDS | | NOMINAL THREAD SIZE | 0.562 INCHES ALL ENDS | | THREAD CLASS | 2B ALL ENDS | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | MOUNTING POSITION | HORIZONTAL OR | | VERTICAL | | BONNET TYPE | OUTSIDE SCREW-YOKE | | BONNET ATTACHMENT METHOD | BOLTED | | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | CLEANING SHALL BE IN ACCORDANCE WITH MIL-C-52211 (FOR OXYGEN SERVICE) | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 30003 | | DESIGN CONTROL REFERENCE | 1551AS244-1 |
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