4820-00-073-1781 VALVE,CHECK Index 6220-00-073-1783 LIGHT,INDICATOR

National Stock Number:
4820-00-073-1782

Federal Supply Class:
4820

National Item Identification Number:
000731782

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:
2C602899240CRISSAIR INC


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 303/SAE 30303 FED STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66,AISI 303/SAE 30303 FED STD SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66,AISI 403/SAE 51403 FED STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIALSTEEL COMP 403 FLOW CONTROL DEVICE
MATERIALSTEEL COMP 303 BODY
MATERIALSTEEL COMP 303 SEAT
MAXIMUM OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDOIL, HYDRAULIC SINGLE RESPONSE
MOUNTING POSITIONHORIZONTAL OR VERTICAL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS
SPECIAL FEATURES1.2 GPM FLOW RATE,2.0 TO 8.0 PSI VALVE CRACKING PRESSURE,INLET END OF BULKHEAD TYPE PER MS33657-4,45.0 DEG ELBOW STRAIGHT THRU STYLE VALVE
SEAT ANGLE37.0 DEGREES ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
SURFACE TREATMENTPASSIVATE
THREAD CLASS3A ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATORUNF ALL ENDS
VALVE OPERATION METHODAUTOMATIC


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