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		                        | National Stock Number:
 4820-00-281-4701
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 002814701
 
 Description:
 VALVE,RESTRICTOR CHECK
 
 Detail:
 A VALVE HAVING AN ORIFICE IN THE POPPET, DISK, OR THE LIKE, TO PERMIT RESTRICTED FLUID FLOW WHEN THE VALVE IS SEATED. IT DOES NOT HAVE A STEM OR PROVISIONS FOR PRESSURE ADJUSTMENTS, AND IS SIMILAR TO A VALVE, CHECK WITH THE EXCEPTION OF THE ORIFICE WHICH PERMITS FLUID FLOW IN MORE THAN ONE DIRECTION.
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 Manufacturer Information:
 
 | 6F2964-105 | 99240 | CRISSAIR INC |  | 6R110-105 | 82829 | ALLEN AIRCRAFT PRODUCTS INC |  | 749943-105 | 98897 | LOCKHEED MARTIN CORP | 
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 Techincal Specification:
 
 | MATERIAL | STEEL CORROSION RESISTING BODY |  |  | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |  | STYLE DESIGNATOR | STRAIGHT THRU |  | FLOW CONTROL DEVICE | POPPET |  | MEDIA FOR WHICH DESIGNED | HYDRAULIC FLUID, PHOSPHATE-ESTER BASE SINGLE RESPONSE |  | MAXIMUM OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | MAXIMUM OPERATING TEMP | -65.0 DEG FAHRENHEIT 1ST RESPONSE |  |  | 275.0 DEG FAHRENHEIT 2ND RESPONSE |  | VALVE OPERATION METHOD | AUTOMATIC |  | CONNECTION TYPE | THREADED EXTERNAL TUBE ALL ENDS |  | CONNECTION STYLE | FLARELESS ALL ENDS |  | SEAT ANGLE | 12.0 DEGREES ALL ENDS |  | THREAD SERIES DESIGNATOR | UNJF ALL ENDS |  | NOMINAL THREAD SIZE | 0.750 INCHES 1ST END |  |  | 0.562 INCHES 2ND END |  | THREAD CLASS | 3A ALL ENDS |  | THREAD DIRECTION | RIGHT-HAND ALL ENDS |  | MOUNTING POSITION | HORIZONTAL OR |  |  | VERTICAL |  | DISK LOADING METHOD | SPRING | 
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