NSN 4820-00-304-3968

Part Details | VALVE SEAT

4820-00-304-3968 A replaceable item designed to provide a 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.

Alternate Parts: 255753PC9, 4820-00-304-3968, 00-304-3968, 4820003043968, 003043968

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48OCT 12, 197300-304-396822113 ( SEAT, VALVE )
REFERENCE DRAWINGS & PICTURES

PLAIN

Cross Reference | NSN 4820-00-304-3968
Part Number Cage Code Manufacturer
255753PC943689HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS
Technical Data | NSN 4820-00-304-3968
Characteristic Specifications
STYLE DESIGNATOR PLAIN
OVERALL HEIGHT0.313 INCHES NOMINAL
BODY OUTSIDE DIAMETER1.747 INCHES NOMINAL
BODY INSIDE DIAMETER1.000 INCHES NOMINAL
SEATING SURFACE SHAPE ANGULAR
SPECIAL FEATURESWEAPONS SYSTEM ESSENTIAL
CRITICALITY CODE JUSTIFICATIONFEAT
END ITEM IDENTIFICATIONSUBMARINE VERTICAL LAUNCH SYSTEM(VLS),STURGEON CLASS SSN(637),LOS ANGELES CLASS SSN(688),YELLOWSTONE CLASS AD-41