NSN 4820-01-221-1172
Part Details | VALVE SEAT
4820-01-221-1172 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: 8035001003X3X252, 803-5001003-X3X2-52, 4820-01-221-1172, 01-221-1172, 4820012211172, 012211172
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | NOV 23, 1985 | 01-221-1172 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
PLAIN FLANGED
Cross Reference | NSN 4820-01-221-1172
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 803-5001003-X3X2-52 | 53711 | NAVAL SEA SYSTEMS COMMAND |
Technical Data | NSN 4820-01-221-1172
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | PLAIN FLANGED |
| FLANGE DIAMETER | 1.632 INCHES NOMINAL |
| BODY OUTSIDE DIAMETER | 1.432 INCHES NOMINAL |
| BODY INSIDE DIAMETER | 1.160 INCHES NOMINAL |
| FLANGE SEAT TO DISK END HEIGHT | 0.123 INCHES NOMINAL |
| UNDER FLANGE HEIGHT | 0.152 INCHES NOMINAL |
| SEATING SURFACE SHAPE | ANGULAR |
| SEAT ANGLE IN DEG | 35.000 NOMINAL |
| TAPER MINOR DIAMETER | 0.015 INCHES NOMINAL |
| TAPER MAJOR DIAMETER | 1.160 INCHES NOMINAL |
| TAPER LENGTH | 1.145 INCHES NOMINAL |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| CRITICALITY CODE JUSTIFICATION | ZZZY |