NSN 4820-00-991-3342

Part Details | VALVE SEAT

4820-00-991-3342 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: H79162019, H791-6201-9, 877916201 ITEM 23, 87791-6201 ITEM 23, 7576540X2PC6, 75765-40X2PC6, 2640801X2PC8, 2640-801X2PC8, 255669PC8, 255553PC4, 55670158426, 556-7015842-6, 5164775912 ITEM 23, 516-4775912 ITEM 23, 5164775898 ITEM 9, 516-4775898 ITEM 9, SS8452115251PC6, SS845-2115251PC6, 4820-00-991-3342, 00-991-3342, 4820009913342, 009913342

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48JAN 01, 196200-991-334222113 ( SEAT, VALVE )
REFERENCE DRAWINGS & PICTURES

PLAIN

Cross Reference | NSN 4820-00-991-3342
Part Number Cage Code Manufacturer
H791-6201-996169ELECTRIC BOAT CORPORATION
87791-6201 ITEM 2396169ELECTRIC BOAT CORPORATION
75765-40X2PC696169ELECTRIC BOAT CORPORATION
2640-801X2PC896169ELECTRIC BOAT CORPORATION
255669PC843689HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS
255553PC443689HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS
556-7015842-653711NAVAL SEA SYSTEMS COMMAND
516-4775912 ITEM 2353711NAVAL SEA SYSTEMS COMMAND
516-4775898 ITEM 953711NAVAL SEA SYSTEMS COMMAND
SS845-2115251PC680064NAVAL SHIP SYSTEMS COMMAND
Technical Data | NSN 4820-00-991-3342
Characteristic Specifications
STYLE DESIGNATOR PLAIN
OVERALL HEIGHT0.625 INCHES NOMINAL
BODY OUTSIDE DIAMETER3.625 INCHES NOMINAL
BODY INSIDE DIAMETER2.125 INCHES NOMINAL
SEATING SURFACE SHAPE RADIAL
SEAT RADIUS0.625 INCHES NOMINAL