2825-00-987-7454, SEAT,VALVE

National Stock Number:
2825-00-987-7454

Federal Supply Class:
2825

National Item Identification Number:
009877454

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:

101B354AA3	03502	GENERAL ELECTRIC CO NAVAL AND DRIVE TURBINE SYSTEMS DEPT
101B354AA3	24446	GENERAL ELECTRIC COMPANY
101B354AAP3	03502	GENERAL ELECTRIC CO NAVAL AND DRIVE TURBINE SYSTEMS DEPT
PL501E458AEPC3	24446	GENERAL ELECTRIC COMPANY

Techincal Specification:

BODY OUTSIDE DIAMETER	1.999 INCHES MINIMUM AND 2.000 INCHES MAXIMUM
BODY STEPPED INSIDE DIAMETER	0.656 INCHES NOMINAL FIRST STEP
BODY STEPPED INSIDE DIAMETER	0.847 INCHES NOMINAL SECOND STEP
BODY STEPPED INSIDE DIAMETER	1.500 INCHES NOMINAL THIRD STEP
FLANGE DIAMETER	2.5005 INCHES MINIMUM AND 2.5010 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT	0.498 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
FSC APPLICATION DATA	TURBINE,STEAM
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-853,CL 3,TY E MIL SPEC SINGLE MATERIAL RESPONSE BODY
MATERIAL DOCUMENT AND CLASSIFICATION	STELLITE B21B23 MFR REF SINGLE MATERIAL RESPONSE SEAT
MATERIAL	STEEL BODY
MATERIAL	STEEL SEAT
SEAT RADIUS	0.194 INCHES MINIMUM AND 0.200 INCHES MAXIMUM
SEATING SURFACE SHAPE	RADIAL
STYLE DESIGNATOR	PLAIN FLANGED
UNDER FLANGE HEIGHT	1.000 INCHES NOMINAL

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