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National Stock Number:
4820-01-170-1280
Federal Supply Class:
4820
National Item Identification Number:
011701280
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:
| 35201000 | 05167 | MEGGITT SAFETY SYSTEMS INC | | 35201000 | 45402 | MEGGITT SAFETY SYSTEMS, INC. | | 7-117210003 | 02731 | MCDONNELL DOUGLAS HELICOPTER CO INC | | 7-117210003 | 8V613 | THE BOEING COMPANY | | 7-117210003 02731 | 8V613 | THE BOEING COMPANY | | 7-117210003 REVC | 8V613 | THE BOEING COMPANY |
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Techincal Specification:
| CONNECTION TYPE | THREADED EXTERNAL TUBE ALL ENDS | | CONNECTION STYLE | PLAIN (TUBE) ALL ENDS | | NOMINAL THREAD SIZE | 0.875 INCHES ALL ENDS | | STYLE DESIGNATOR | CROSS | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | THREAD CLASS | 3A ALL ENDS | | THREAD SERIES DESIGNATOR | UNF ALL ENDS | | VALVE OPERATION METHOD | AUTOMATIC |
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