1660-00-996-8253 GUIDE,DIAPHRAGM Index 4720-00-996-8255 HOSE ASSEMBLY,NONMETALLIC

National Stock Number:
4820-00-996-8254

Federal Supply Class:
4820

National Item Identification Number:
009968254

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:
396-0909445DUKES AEROSPACE, INC.


Techincal Specification:
FLANGE DIAMETER0.625 INCHES NOMINAL
OVERALL HEIGHT0.720 INCHES MINIMUM AND
0.740 INCHES MAXIMUM
BODY OUTSIDE DIAMETER0.478 INCHES MINIMUM AND
0.480 INCHES MAXIMUM
BODY INSIDE DIAMETER0.188 INCHES NOMINAL
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,CLASS 416 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND
40.0 ROCKWELL C MAXIMUM OVERALL
THREAD SERIES DESIGNATORUNF SINGLE THREADED PORTION
NOMINAL THREAD SIZE0.625 INCHES SINGLE THREADED PORTION
THREAD QUANTITY PER INCH18 SINGLE THREADED PORTION
THREAD LENGTH0.160 INCHES NOMINAL SINGLE THREADED PORTION
THE MANUFACTURERS DATA
MANUFACTURERS CODE09445
DESIGN CONTROL REFERENCE396-09


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