4820-00-068-1015 VALVE,CHECK Index 5305-00-068-1024 THUMBSCREW

National Stock Number:
4820-00-068-1017

Federal Supply Class:
4820

National Item Identification Number:
000681017

Description:
VALVE,SAFETY RELIEF

Detail:
A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.


Manufacturer Information:
26-15768-108903THE BOEING COMPANY
26-15768-181205THE BOEING COMPANY
D559T-8D-2891816CIRCOR AEROSPACE, INC.


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+25.0 TO 75.0 POUNDS PER SQUARE INCH
CONNECTION STYLEFLARED (TUBE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
DISK LOADING METHODSPRING
FURNISHED ITEMS AND QUANTITY1 DEFLECTOR CAP
FEATURES PROVIDEDVALVE STEM LOCK SHIELD
FLOW CONTROL DEVICEPOPPET
MATERIAL DOCUMENT AND CLASSIFICATIONFEDSTD66,AISI303/SAE30303 FED STD SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATIONFEDSTD66,AISI303/SAE30303 FED STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE
MATERIAL DOCUMENT AND CLASSIFICATIONFEDSTD66,AISI303/SAE30303 FED STD SINGLE MATERIAL RESPONSE SEAT
MATERIAL DOCUMENT AND CLASSIFICATIONFEDSTD66,AISI303/SAE30303 FED STD SINGLE MATERIAL RESPONSE STEM
MATERIALSTEEL COMP 303 AND RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR FLOW CONTROL DEVICE
MATERIALSTEEL COMP 303 BODY
MATERIALSTEEL COMP 303 SEAT
MATERIALSTEEL COMP 303 STEM
MAXIMUM OPERATING TEMP-40.0 FAHRENHEIT 1ST RESPONSE280.0 FAHRENHEIT 2ND RESPONSE
MAXIMUM OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
MEDIA FOR WHICH DESIGNEDALCOHOL, ETHYL 2ND RESPONSE
MEDIA FOR WHICH DESIGNEDAMMONIA, GASEOUS 3RD RESPONSE
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON 4TH RESPONSE
MEDIA FOR WHICH DESIGNEDHELIUM 5TH RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES ALL ENDS
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS
OPENING PRESSURE SETTING28.0 POUNDS PER SQUARE INCH
SEAT ANGLE37.0 DEGREES ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
THREAD CLASS3A ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATORUNJF ALL ENDS
VALVE OPERATION METHODAUTOMATIC


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