4820-00-138-3897 VALVE,SAFETY RELIEF Index 4820-00-138-3899 VALVE,ANGLE

National Stock Number:
4820-00-138-3898

Federal Supply Class:
4820

National Item Identification Number:
001383898

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:
869A3T4T791816CIRCOR AEROSPACE, INC.
C6217A3M4M781755LOCKHEED MARTIN CORPORATION


Techincal Specification:
CONNECTION STYLEFLARED (TUBE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
MATERIAL DOCUMENT AND CLASSIFICATIONFED-STD-66, AISI 304/SAE 30304 FED STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/4,ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/4,ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIALALUMINUM ALLOY 2024 BODY
MATERIALALUMINUM ALLOY 2024 SEAT
MATERIALRUBBER SYNTHETIC AND STEEL COMP 304 FLOW CONTROL DEVICE
MAXIMUM OPERATING PRESSURE600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP180.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDNITROGEN, GASEOUS 2ND RESPONSE
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
MOUNTING POSITIONHORIZONTAL OR VERTICAL
NOMINAL THREAD SIZE0.375 INCHES ALL ENDS
SEAT ANGLE37.0 DEGREES ALL ENDS
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
THREAD CLASS3A ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATORUNF ALL ENDS


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