4820-01-145-1857 VALVE,CHECK Index 4820-01-145-1859 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-145-1858

Federal Supply Class:
4820

National Item Identification Number:
011451858

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:
1C130099240CRISSAIR INC
SS7078286SIKORSKY AIRCRAFT CORPORATION
SS70-916L8-6D78286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
CONNECTION STYLEFLARELESS ALL ENDS
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEDISK
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6, ALLOY 2024, T4 FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764, TYPE 416-CANCELLED FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIALALUMINUM ALLOY 2024 BODY
MATERIALSTEEL COMP 416 FLOW CONTROL DEVICE
MAXIMUM OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE
MOUNTING POSITIONHORIZONTAL OR VERTICAL
NOMINAL THREAD SIZE0.562 INCHES 2ND END
NOMINAL THREAD SIZE0.750 INCHES 1ST END
SEAT ANGLE12.5 DEGREES ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
SURFACE TREATMENTANODIZE
THREAD CLASS3A ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATORUNJF ALL ENDS
VALVE OPERATION METHODAUTOMATIC


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