3120-01-054-6655 BEARING,WASHER,THRUST Index 4820-01-054-6657 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-054-6656

Federal Supply Class:
4820

National Item Identification Number:
010546656

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:
2677A-4TT-.791816CIRCOR AEROSPACE, INC.
ES3437-0220418DRS SUSTAINMENT SYSTEMS, INC. USE CAGE CODE 98255 FOR CATALOGING
ES3437-0520418DRS SUSTAINMENT SYSTEMS, INC. USE CAGE CODE 98255 FOR CATALOGING
ES3437-0598255DRS SUSTAINMENT SYSTEMS INC


Techincal Specification:
CONNECTION TYPETHREADED EXTERNAL BOSS ALL ENDS
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/4,T351 AND T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2024 OVERALL
MAXIMUM OPERATING TEMP200.0 FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
MOUNTING POSITIONHORIZONTAL OR VERTICAL
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS
SEAT ANGLE37.0 DEGREES ALL ENDS
SPECIAL FEATURESCRACKING PRESSURE 7.0 PSI
STYLE DESIGNATORSTRAIGHT THRU
SURFACE TREATMENTANODIZE
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD CLASS3A ALL ENDS
THREAD SERIES DESIGNATORUNJF ALL ENDS
VALVE OPERATION METHODAUTOMATIC


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