|
|
|
National Stock Number:
4820-01-212-5259
Federal Supply Class:
4820
National Item Identification Number:
012125259
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:
| 27641 | 16780 | EATON AEROSPACE LLC |
|
Techincal Specification:
| BODY INSIDE DIAMETER | 0.187 INCHES NOMINAL | | BODY OUTSIDE DIAMETER | 0.309 INCHES MINIMUM AND 0.310 INCHES MAXIMUM | | FLANGE DIAMETER | 0.419 INCHES MINIMUM AND 0.420 INCHES MAXIMUM | | FLANGE SEAT TO DISK END HEIGHT | 0.1315 INCHES NOMINAL | | FSC APPLICATION DATA | ACFT ENG FUEL SYSTEM COMPONENTS | | HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 17-4PH OVERALL | | SEATING SURFACE SHAPE | FLAT | | SPECIAL FEATURES | BODY OD 0.025 X 30 DEG CHAM,0.187 IN. ID TAPERING TO 0.077 - 0.078 IN.BORE THRU 0.126 IN. OD BOSS 0.0300 IN. H W/16 MICHROINCH FINISH,LOWER SEAT | | STYLE DESIGNATOR | PLAIN FLANGED | | SURFACE TREATMENT | PASSIVATE OVERALL | | UNDER FLANGE HEIGHT | 0.099 INCHES NOMINAL |
|
|