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National Stock Number:
4820-00-794-4991
Federal Supply Class:
4820
National Item Identification Number:
007944991
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:
| 3-758-1-9 | 92003 | PARKER HANNIFIN CORPORATION DIV AEROSPACE GROUP HEADQUARTERS | | 3-758-51-9 | 92003 | PARKER HANNIFIN CORPORATION DIV AEROSPACE GROUP HEADQUARTERS | | 668391 | 98897 | LOCKHEED MARTIN CORP | | 668391-3 | 98897 | LOCKHEED MARTIN CORP |
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Techincal Specification:
| THREAD DIRECTION | RIGHT-HAND 1ST END | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 92003 | | DESIGN CONTROL REFERENCE | 3-758-51-9 | | MATERIAL | STEEL COMP 303 BODY | | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING | | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR SEAT | | STEEL COMP 303 STEM | | SURFACE TREATMENT | PASSIVATE | | STYLE DESIGNATOR | STRAIGHT THRU | | MEDIA FOR WHICH DESIGNED | HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE | | MAXIMUM OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MAXIMUM OPERATING TEMP | 150.0 DEG FAHRENHEIT SINGLE RESPONSE | | VALVE OPERATION METHOD | MANUAL | | CONNECTION TYPE | THREADED INTERNAL BOSS 1ST END | | CONNECTION STYLE | GASKET SEAL (BOSS) 1ST END | | THREAD SERIES DESIGNATOR | UNJF 1ST END | | NOMINAL THREAD SIZE | 0.750 INCHES 1ST END | | THREAD QUANTITY PER INCH | 16 1ST END | | THREAD CLASS | 3B 1ST END |
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