4730-01-442-9936 NUT,UNION Index 4820-01-442-9938 DISK,VALVE

National Stock Number:
4820-01-442-9937

Federal Supply Class:
4820

National Item Identification Number:
014429937

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:
6397434-X23XXX-02353711NAVAL SEA SYSTEMS COMMAND
6397434-X23XXX-023L103950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
6397434-X23XXX-023SS03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
803-6397434-X23XXX-023L103950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
803-6397434-X23XXX-023SS03950NAVAL INVENTORY CONTROL POINT MECHANICSBURG
803-6397434-X23XXX-02353711NAVAL SEA SYSTEMS COMMAND


Techincal Specification:
CRITICALITY CODE JUSTIFICATIONZZZY
FLANGE DIAMETER0.930 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.188 INCHES NOMINAL
NOMINAL THREAD SIZE0.7656 INCHES SINGLE THREADED PORTION
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-24252 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOBALT COMP 1 OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSQUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR SUBSAFE ITEMS
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION
THREAD QUANTITY PER INCH24 SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.312 INCHES NOMINAL
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS3A SINGLE THREADED PORTION


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