|
|
|
National Stock Number:
4820-01-215-3248
Federal Supply Class:
4820
National Item Identification Number:
012153248
Description:
SEAT,VALVE
Detail:
A replaceable item designed to provide a circular 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.
|
Manufacturer Information:
| 30147 PIECE 3 | 14959 | CRANE CO DIV VALVE DIV | | 9000-2129 | 96169 | ELECTRIC BOAT CORPORATION | | 9000-2129 PIECE 3 | 96169 | ELECTRIC BOAT CORPORATION |
|
Techincal Specification:
| STYLE DESIGNATOR | THREADED FLANGED | | FLANGE DIAMETER | 3.875 INCHES NOMINAL | | BODY INSIDE DIAMETER | 2.625 INCHES MINIMUM AND | | 2.630 INCHES MAXIMUM | | FLANGE SEAT TO DISK END HEIGHT | 0.688 INCHES NOMINAL | | UNDER FLANGE HEIGHT | 0.812 INCHES NOMINAL | | MATERIAL | NICKEL ALLOY B OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B164 ALLOY R-405 ASSN STD SINGLE MATERIAL RESPONSE SEAT | | SEATING SURFACE SHAPE | FLAT | | THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION | | NOMINAL THREAD SIZE | 3.459 INCHES SINGLE THREADED PORTION | | THREAD QUANTITY PER INCH | 11-1/2 SINGLE THREADED PORTION | | THREAD LENGTH | 0.656 INCHES NOMINAL SINGLE THREADED PORTION | | SPECIAL FEATURES | 4 SLOTS 0.750 IN. WIDE EQUALLY SPACED |
|