NSN 4820-01-181-8657
Part Details | VALVE SEAT
4820-01-181-8657 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: 6553255 PIECE 9, 6553-255 PIECE 9, 6553255, 6553-255, 2084325303 PIECE 9, 208-4325303 PIECE 9, 2084325303, 208-4325303, 2084325303 PIE, 208-4325303 PIE, 4820-01-181-8657, 01-181-8657, 4820011818657, 011818657
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | JUN 16, 1984 | 01-181-8657 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
PLAIN THREADED
Cross Reference | NSN 4820-01-181-8657
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 6553-255 PIECE 9 | 43689 | HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS |
| 6553-255 | 43689 | HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS |
| 208-4325303 PIECE 9 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| 208-4325303 | 80064 | NAVAL SHIP SYSTEMS COMMAND |
| 208-4325303 PIE | 80004 | PRECISION RADIATION INSTRUMENTS INC |
Technical Data | NSN 4820-01-181-8657
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | PLAIN THREADED |
| OVERALL HEIGHT | 0.634 INCHES NOMINAL |
| BODY INSIDE DIAMETER | 4.250 INCHES NOMINAL |
| SEATING SURFACE SHAPE | FLAT |
| SPECIAL FEATURES | W/2 STD WRENCH NOTCHES ON THE ID |