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National Stock Number:
4820-00-971-3567
Federal Supply Class:
4820
National Item Identification Number:
009713567
Description:
VALVE,LIFT-CHECK
Detail:
A VALVE WITH A STEM THAT MAY BE MECHANICALLY ACTUATED TO TWO DIFFERENT POSITIONS BY ROTARY OR LINEAR MOTION. IN THE FIRST 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. IN THE SECOND POSITION, THE VALVE DISK IS LIFTED FROM THE SEAT TO ALLOW A FLOW OF FLUID IN EITHER DIRECTION THROUGH THE VALVE. THE VALVE DISK MAY BE SPRING LOADED. SEE ALSO VALVE, STOP-CHECK AND VALVE, STOP-LIFT-CHECK.
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Manufacturer Information:
| 128H10107-1 | 05722 | S & L AEROSPACE METALS LLC | | 128H10107-1 | 26512 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | 128H10107-1 | 34550 | KHS CORP | | 128H10107-1 | 65780 | TEK PRECISION CO LIMITED | | 128H10107-1 | 79RG9 | NORTHROP GRUMMAN SYSTEMS CORPORATION | | MS16625-1125 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| MATERIAL | ALUMINUM ALLOY 2014 BODY | | STEEL COMP 440C SEAT | | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225/4,ALLOY 2014 FED SPEC SINGLE MATERIAL RESPONSE BODY | | QQ-S-763,CLASS 44-C,COND A FED SPEC SINGLE MATERIAL RESPONSE SEAT | | OFFSET DISTANCE | 0.515 INCHES | | FLOW CONTROL DEVICE | POPPET | | MEDIA FOR WHICH DESIGNED | FUEL/OIL, HYDROCARBON SINGLE RESPONSE | | MAXIMUM OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE | | MAXIMUM OPERATING TEMP | 160.0 DEG FAHRENHEIT SINGLE RESPONSE | | VALVE OPERATION METHOD | AUTOMATIC | | CONNECTION TYPE | THREADED INTERNAL BOSS ALL ENDS | | CONNECTION STYLE | GASKET SEAL (BOSS) ALL ENDS | | THREAD SERIES DESIGNATOR | UNJF ALL ENDS | | NOMINAL THREAD SIZE | 0.437 INCHES ALL ENDS | | THREAD CLASS | 3B ALL ENDS | | THREAD DIRECTION | RIGHT-HAND ALL ENDS | | MOUNTING POSITION | HORIZONTAL | | RENEWABLE SEAT RING TYPE | PRESSED-IN | | BONNET TYPE | INSIDE SCREW | | BONNET ATTACHMENT METHOD | THREADED | | DISK LOADING METHOD | SPRING |
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