4820-01-285-7427 VALVE,GLOBE Index 5325-01-285-7429 GROMMET,METALLIC

National Stock Number:
4820-01-285-7428

Federal Supply Class:
4820

National Item Identification Number:
012857428

Description:
VALVE,CHECK

Detail:
A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.


Manufacturer Information:
4C203A382829ALLEN AIRCRAFT PRODUCTS INC
824A-4JT91816CIRCOR AEROSPACE, INC.
C7553A3-481755LOCKHEED MARTIN CORPORATION


Techincal Specification:
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END
CONNECTION STYLEGASKET SEAL (BOSS) SECOND END
CONNECTION TYPETHREADED EXTERNAL BOSS FIRST END
CONNECTION TYPETHREADED INTERNAL BOSS SECOND END
FLOW CONTROL DEVICEPOPPET
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/3, ALLOY 2024, T4 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-225/8, ALLOY 6061, T651 FED SPEC 2ND MATERIAL RESPONSE BODY
MATERIALALUMINUM ALLOY BODY
MAXIMUM OPERATING TEMP450.0 FAHRENHEIT SINGLE RESPONSE
MINIMUM OPERATING TEMP-70.0 FAHRENHEIT
MOUNTING POSITIONHORIZONTAL OR VERTICAL
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS
OPERATING PRESSURE600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
SEAT ANGLE37.0 DEGREES FIRST END
SPECIAL FEATURESFIFTH SURFACE TREATMENT: SILICONE, MINUS 480 DEG F TO PLUS 480 DEG F FOR AIR, C02, 02, N2 APPLICATIONS
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
SUPPLEMENTARY FEATURESAPPL TO F-16D BLK40/60
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE
SURFACE TREATMENTANODIZE
THREAD CLASS3A FIRST END
THREAD CLASS3B SECOND END
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD QUANTITY PER INCH20 ALL ENDS
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT (UNJ) ALL ENDS


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