4470-00-939-5976 DISC,VALVE,METALLIC Index 4470-00-939-5978 SEAT,VALVE

National Stock Number:
4470-00-939-5977

Federal Supply Class:
4470

National Item Identification Number:
009395977

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:
41-3-2275954KUNKLE INDUSTRIES INC LONERGAN VALVE DIV
41-3-22SPCLN75954KUNKLE INDUSTRIES INC LONERGAN VALVE DIV
B2351PC975954KUNKLE INDUSTRIES INC LONERGAN VALVE DIV
B2351PC9-1X1IN(SPCLN)75954KUNKLE INDUSTRIES INC LONERGAN VALVE DIV
C341775954KUNKLE INDUSTRIES INC LONERGAN VALVE DIV


Techincal Specification:
BODY INSIDE DIAMETER1.000 INCHES MINIMUM AND 1.002 INCHES MAXIMUM
CRITICALITY CODE JUSTIFICATIONZZZY
FLANGE DIAMETER2.938 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.625 NOMINAL INCHES
FSC APPLICATION DATASPECIAL PROPULSION PLANT SYSTEM
NOMINAL THREAD SIZE1.375 INCHES SINGLE THREADED PORTION
MATERIAL DOCUMENT AND CLASSIFICATIONSTELLITE 6,JE LONERGAN MFR REF SINGLE MATERIAL RESPONSE FACE
MATERIALSTEEL FACE
SEAT ANGLE IN DEG45.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSCLEANED IN ACCORDANCE WITH MIL-STD-767
THREAD QUANTITY PER INCH16 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUN SINGLE THREADED PORTION
UNDER FLANGE HEIGHT0.500 INCHES NOMINAL
THREAD CLASS3A SINGLE THREADED PORTION
THREAD LENGTH0.375 INCHES NOMINAL SINGLE THREADED PORTION


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