4820-01-590-0140 VALVE,SAFETY RELIEF Index 4820-00-493-1991 VALVE,SAFETY RELIEF

National Stock Number:
4820-00-486-4356

Federal Supply Class:
4820

National Item Identification Number:
004864356

Description:
COCK,POPPET DRAIN

Detail:
AN ITEM DESIGNED TO DRAIN FLUIDS FROM FUEL SYSTEMS, TANKS, FILTERS, OR SIMILAR ITEMS. IT HAS A MOUNTING END, A FREE FLOWING END, AND A QUICK-ACTING NONMETALLIC SEALED CLOSURE, USUALLY SPRING LOADED, THAT HOLDS IT IN AN "OFF" POSITION. IT REQUIRES NO LUBRICATION OTHER THAN FROM THE FLUID BEING DRAINED.


Manufacturer Information:
131-2040201276EATON-AEROQUIP INC DIV FLUID CONNECTORS PRODUCTS
131-2040279470DANA CORP WEATHERHEAD DIV
K1750B1-192003PARKER HANNIFIN CORPORATION DIV AEROSPACE GROUP HEADQUARTERS


Techincal Specification:
CONNECTION STYLEPLAIN (TUBE) 1ST END
CONNECTION TYPETHREADED EXTERNAL TUBE 1ST END
FLOW CONTROL DEVICEPOPPET
MATERIALCOPPER ALLOY BODY
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.438 INCHES 1ST END
NOMINAL THREAD SIZE0.437 INCHES 1ST END
SEAT ANGLE37.0 DEGREES 1ST END
VALVE OPERATION METHODMANUAL
STYLE DESIGNATORANGLE
SURFACE TREATMENTCADMIUM
THREAD CLASS3A 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD SERIES DESIGNATORUNF 1ST END
THREAD QUANTITY PER INCH20 1ST END


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