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Part Number

Part Number:
NSN:
NIIN:
Item Name:
VALVE , RELIEF , PRESSURE AND TEMPER

Definition:

A VALVE DESIGNED TO RELEASE UNDER EXCESSIVE PRESSURE AND/OR EXCESSIVE TEMPERATURE BY OPENING AT A PREDETERMINED PRESSURE AND/OR TEMPERATURE. THERMOSTATICALLY OPERATED VALVES CLOSE WHEN THE PRESSURE IS RELIEVED OR THE TEMPERATURE IS REDUCED. FUSIBLE PLUG VALVES REQUIRE REPLACEMENT OF THE PLUG. SEE ALSO VALVE, SAFETY RELIEF AND VALVE, REGULATING. TEMPERATURE.

CAGE Information

Code Company
03950 NAVAL INVENTORY CONTROL POINT MECHAN

Federal Supply Class

Title

VALVES, NONPOWERED

Inclusions:

INCLUDES AUTOMATIC NONPOWERED VALVES; GATE, GLOBE, ANGLE, CHECK, AND RELIEF VALVES; COCKS.

Exclusions:

EXCLUDES FIRE HYDRANTS (FSC 4210); SPRINKLER HEADS (FSC 4210); VALVES SPECIFICALLY DESIGNED FOR USE WITH FIRE FIGHTING EQUIPMENT (FSC 4210); PLUMBING EQUIPMENT, AND THE LIKE (FSC 4540).

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
AAQL BODY STYLE ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
CRTL CRITICALITY CODE JUSTIFICATION ZZZY
ACKM FIRST END CONNECTION TYPE RAISED FACE FLANGE
ADQU FLOW CONTROL DEVICE DISK, CIRCULAR
ADQZ END CONNECTION QUANTITY 2
ZZZY REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION
ADQM FIRST CONNECTION FACE TO CENTERLINE DISTANCE 4.125 INCHES NOMINAL
ADQN SECOND CONNECTION FACE TO CENTERLINE DISTANCE 4.500 INCHES NOMINAL
AAFZ BODY MATERIAL STEEL, CORROSION RESISTING

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