NSN 4820-00-306-4840
Part Details | VALVE SEAT
4820-00-306-4840 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: 1039, 4820-00-306-4840, 00-306-4840, 4820003064840, 003064840
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
48 | JAN 01, 1963 | 00-306-4840 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
PLAIN THREADED

Cross Reference | NSN 4820-00-306-4840
Part Number | Cage Code | Manufacturer |
---|---|---|
1039 | 94874 | DROITCOUR COMPANY |
Technical Data | NSN 4820-00-306-4840
Characteristic | Specifications |
---|---|
STYLE DESIGNATOR | PLAIN THREADED |
OVERALL HEIGHT | 0.668 INCHES MINIMUM AND 0.678 INCHES MAXIMUM |
BODY INSIDE DIAMETER | 0.154 INCHES MINIMUM AND 0.158 INCHES MAXIMUM |
SEATING SURFACE SHAPE | FLAT |
SEAL ACCOMMODATION TYPE | RECESSED |
SPECIAL FEATURES | 4 BLEED HOLES |
FSC APPLICATION DATA | VALVE,SAFETY RELIEF,NONPOWERED |