NSN 4820-00-551-0757

Part Details | FLUID PRESSURE REGULATING VALVE

4820-00-551-0757 A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes REGULATOR, PRESSURE, MEDICAL GAS ADMINISTRATION APPARATUS; REGULATOR, OXYGEN, BAROMETRIC CONTINUOUS FLOW; REGULATOR, OXYGEN DEMAND; REGULATOR, OXYGEN DILUTER DEMAND; and valve(1), fluid pressure regulating, aircraft.

Alternate Parts: MILR19180, 41C3, 07816015, 0781-6015, PSR210, 4820-00-551-0757, 00-551-0757, 4820005510757, 005510757

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48JAN 01, 196300-551-075727565 ( VALVE, REGULATING, FLUID PRESSURE )
REFERENCE DRAWINGS & PICTURES

STRAIGHT THRU

SWIVEL NUT, INVERTED FLARE

FLARED

SWIVEL NUT, INVERTED FLARE

FLARED

SWIVEL NUT, INVERTED FLARE

FLARED

SWIVEL NUT, INVERTED FLARE

FLARED

Cross Reference | NSN 4820-00-551-0757
Part Number Cage Code Manufacturer
MILR1918081349MILITARY SPECIFICATIONSPROMULGATED BY MILITARY
41C343030PARKER-HANNIFIN CORPORATIONDBA VERIFLO DIVISION
0781-601563026VICTOR EQUIPMENT CO
PSR21063026VICTOR EQUIPMENT CO
Technical Data | NSN 4820-00-551-0757
Characteristic Specifications
BODY MATERIAL
TEMP RATING-40.0 DEG FAHRENHEIT MINIMUM AND 165.0 DEG FAHRENHEIT MAXIMUM
MAXIMUM INLET PRESSURE RATING350.0 POUNDS PER SQUARE INCH
OUTLET PRESSURE RANGE+6.5 TO +7.5 POUNDS PER SQUARE INCH
OUTLET PRESSURE ACCURACY RATING3.500 POUNDS PER SQUARE INCH
FILTER INCLUDED
FURNISHED ITEMS AUTOMATIC RELIEF VALVE
NONDEFINITIVE SPEC/STD DATA1 TYPE AND AP1 CLASS
SEAT MATERIAL
STEM MATERIAL
FLOW CONTROL DEVICE DISK, FLAT, TOP AND BOTTOM GUIDED
FLOW CONTROL DEVICE MATERIAL
OUTSIDE SURFACE TREATMENT
END CONNECTION QUANTITY2
FIRST END CONNECTION TYPE THREADED EXTERNAL TUBE
FIRST END STYLE DESIGNATOR FLARED
FIRST END OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES NOMINAL
FIRST END THREAD SIZE AND SERIES/TYPE DESIGNATOR9 TO 16-18 UNF
FIRST END THREAD CLASS3A
FIRST END THREAD DIRECTION LEFT-HAND
FIRST END SEAT ANGLE IN DEG30.0
SECOND END RELATIONSHIP WITH FIRST END NOT IDENTICAL
SECOND END CONNECTION TYPE THREADED INTERNAL GAS CYLINDER
SECOND END STYLE DESIGNATOR SWIVEL NUT, INVERTED FLARE
SECOND END THREAD SIZE AND SERIES/TYPE DESIGNATOR0.620-20 NGO
SECOND END THREAD DIRECTION RIGHT-HAND
BODY STYLE2 STRAIGHT THRU
MEDIA FOR WHICH DESIGNED ACETYLENE
RENEWABLE SEAT RING TYPEE ANY ACCEPTABLE
REGULATION TYPE MANUAL SINGLE STAGE
MANUAL CONTROL METHOD TEE HANDLE
VALVE STEM DESIGN SINGLE SEAT
VALVE LOADING METHOD SPRING
REMOTE ACTUATION METHOD DIAPHRAGM