4820-01-442-9939 DISK,VALVE Index 4820-01-442-9941 DISK,VALVE

National Stock Number:
4820-01-442-9940

Federal Supply Class:
4820

National Item Identification Number:
014429940

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:
803-6397434-X51XX-04953711NAVAL SEA SYSTEMS COMMAND
803-6397434-X51XX-049L103950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
803-6397434-X51XXX-022L103950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
803-6397434-X51XXX-022SS03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
803-6397434-X51XXX-02253711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
CRITICALITY CODE JUSTIFICATIONZZZY
FLANGE DIAMETER2.117 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.216 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-24252 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOBALT COMP 1 OVERALL
NOMINAL THREAD SIZE1.9375 INCHES SINGLE THREADED PORTION
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS3A SINGLE THREADED PORTION
THREAD QUANTITY PER INCH18 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION


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