4820-01-702-7551 VALVE,SHUTTLE 4820-01-702-7581 VALVE,LINEAR,DIRECTIONAL CONTROL

National Stock Number:
4820-01-702-7552

Federal Supply Class:
4820

National Item Identification Number:
017027552

Description:
VALVE,SAFETY RELIEF


Manufacturer Information:
524T1-4D-1491816CIRCOR AEROSPACE, INC.


Techincal Specification:
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
CONNECTION STYLEPLAIN (TUBE) ALL ENDS
DISK LOADING METHODSPRING
FURNISHED ITEMS AND QUANTITY1 GASKET
FLOW CONTROL DEVICEPOPPET
OPENING PRESSURE SETTING14.0 POUNDS PER SQUARE INCH GAGE
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM SINGLE RESPONSE
PART NAME ASSIGNED BY CONTROLLING AGENCYADJUSTABLE POPOFF AND INLINE RELIEF VALVES
MATERIALRUBBER SYNTHETIC PACKING
MATERIALSTEEL COMP 302 OR STEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIALSTEEL COMP 316 BODY
MAXIMUM OPERATING TEMP204.4 CELSIUS SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE
MINIMUM OPERATING TEMP-56.6 CELSIUS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS
SPECIAL FEATURESMATERIALS: BODY - 316 STAINLESS STEEL; O-RING - SILICONE; SPRING: 302 STAINLESS OR 17-7PH STAINLESS. HYDRAULIC FLUID MIL-H-5506. OPERATING PRESSURE - VACUUM TO 200 PSIG. PROOF - 400 PSIG. BURST - ABOVE 500 PSIG. TEMPERATURE RANGE: -56.6 TO 204.4 DEG C. CRACKING PRESSURE: 14.0 PSIG. D - CONNECTION: TUBE, MALE AS4395 (MS33656) WITH CONE POINT REMOVED (INLET ONLY).
VALVE OPERATION METHODAUTOMATIC
VALVE SIZE0.25 INCHES
STYLE DESIGNATORSTRAIGHT THRU
THREAD CLASS3A ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD QUANTITY PER INCH20 ALL ENDS
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS


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