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National Stock Number:
4820-00-993-5890
Federal Supply Class:
4820
National Item Identification Number:
009935890
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.
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Manufacturer Information:
| 101B209RA | 03502 | GENERAL ELECTRIC CO NAVAL AND DRIVE TURBINE SYSTEMS DEPT | | 101B209RA | 24446 | GENERAL ELECTRIC COMPANY |
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Techincal Specification:
| FLANGE DIAMETER | 2.281 INCHES NOMINAL | | BODY OUTSIDE DIAMETER | 1.936 INCHES MINIMUM AND | | 1.937 INCHES MAXIMUM | | FLANGE SEAT TO DISK END HEIGHT | 0.248 INCHES MINIMUM AND | | 0.252 INCHES MAXIMUM | | UNDER FLANGE HEIGHT | 0.750 INCHES NOMINAL | | MATERIAL | STEEL BODY | | COBALT ALLOY SEAT | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18410 CLASS B,COND A MIL SPEC SINGLE MATERIAL RESPONSE BODY | | MIL-R-17131,TYPE-MIL-RCOCR-A MIL SPEC SINGLE MATERIAL RESPONSE SEAT | | SEATING SURFACE SHAPE | ANGULAR | | SEAT ANGLE IN DEG | 20.000 NOMINAL | | TAPER MINOR DIAMETER | 1.250 INCHES NOMINAL | | TAPER MAJOR DIAMETER | 1.562 INCHES NOMINAL | | TAPER LENGTH | 0.428 INCHES NOMINAL | | FSC APPLICATION DATA | STEAM TURBINE,ELECTRIC GENERATION | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 03502 | | DESIGN CONTROL REFERENCE | 101B209RA |
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