NSN 4820-01-420-4998
Part Details | VALVE SEAT
4820-01-420-4998 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: 639585, 5275F 2.50IN IT3, 0639585, WALWORTH 5275F 2.50IN IT3, 4820-01-420-4998, 01-420-4998, 4820014204998, 014204998
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | OCT 18, 1995 | 01-420-4998 | 22113 ( SEAT, VALVE ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 4820-01-420-4998
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 639585 | 63686 | THE WALWORTH COMPANY |
| 5275F 2.50IN IT3 | 63686 | THE WALWORTH COMPANY |
| 0639585 | 63686 | THE WALWORTH COMPANY |
| WALWORTH 5275F 2.50IN IT3 | 0YRW0 | VALVE AUTOMATION AND CONTROL OF SANDIEGO, INC. |
Technical Data | NSN 4820-01-420-4998
| Characteristic | Specifications |
|---|---|
| SEATING SURFACE SHAPE | O-RING |
| SPECIAL FEATURES | CARBON MOLY STEEL A-182 GR F1, W 13PERCENT CHROME STEEL FACING 250-280 BHN, AA TRIM 2.50IN. 5275F GLOBE VALVE |
| END ITEM IDENTIFICATION | NAVY WEAPON SYSTEM CODE TH, STATEGIC SEALIFT CONVERSION SHIPS CLASS |