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


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