4820-00-169-5310 VALVE,SAFETY RELIEF Index 4820-00-169-5314 BALL,VALVE

National Stock Number:
4820-00-169-5311

Federal Supply Class:
4820

National Item Identification Number:
001695311

Description:
SEAT,VALVE

Detail:
A replaceable item designed to provide a circular stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see INSERT, ENGINE VALVE SEAT.


Manufacturer Information:
2640-801X3PC896169ELECTRIC BOAT CORPORATION
2640-801X3PC8Q303950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
2640-824X51PC3896169ELECTRIC BOAT CORPORATION
2640-824X51PC38Q303950NAVAL INVENTORY CONTROL POINT MECHANICSBURG


Techincal Specification:
BODY OUTSIDE DIAMETER2.497 INCHES MINIMUM AND 2.500 INCHES MAXIMUM
BODY STEPPED INSIDE DIAMETER1.875 INCHES NOMINAL SECOND STEP
BODY STEPPED INSIDE DIAMETER1.625 INCHES NOMINAL FIRST STEP
BODY STEPPED INSIDE DIAMETER2.045 INCHES NOMINAL THIRD STEP
CRITICALITY CODE JUSTIFICATIONZZZY
OVERALL HEIGHT0.300 INCHES NOMINAL
MATERIALPLASTIC OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSITEM THAT SUPPORTS A LEVEL 1 OR SUBSAFE CRITICAL SYSTEM THAT HAS UNDERGONE QUALITY ASSURANCE DURING THE ACQUISITION PROCESS
STYLE DESIGNATORPLAIN


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