NSN 4820-01-263-3108

Part Details | VALVE SEAT

4820-01-263-3108 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: 258760 ITEM 34, 255584 PIECE 27, 255584, 4820-01-263-3108, 01-263-3108, 4820012633108, 012633108

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48SEP 12, 198701-263-310822113 ( SEAT, VALVE )
REFERENCE DRAWINGS & PICTURES

PLAIN

Cross Reference | NSN 4820-01-263-3108
Part Number Cage Code Manufacturer
258760 ITEM 3443689HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS
255584 PIECE 2743689HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS
25558443689HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS
Technical Data | NSN 4820-01-263-3108
Characteristic Specifications
STYLE DESIGNATOR PLAIN
OVERALL HEIGHT0.375 INCHES NOMINAL
BODY OUTSIDE DIAMETER2.125 INCHES NOMINAL
BODY INSIDE DIAMETER1.250 INCHES NOMINAL
SEATING SURFACE SHAPE RADIAL
SEAT RADIUS0.469 INCHES NOMINAL