4820-00-391-8248 SEAT,VALVE Index 4820-00-391-8251 BODY,VALVE

National Stock Number:
4820-00-391-8249

Federal Supply Class:
4820

National Item Identification Number:
003918249

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:
C50701-05 MEA11859HUNT VALVE COMPANY, INC.
C50701-05 MEA34889HUNT VALVE COMPANY INC
D1585623168HAMMEL DAHL INC
D1585634889HUNT VALVE COMPANY INC


Techincal Specification:
BODY STEPPED INSIDE DIAMETER1.000 INCHES MINIMUM AND 1.312 INCHES MAXIMUM FIRST STEP
BODY STEPPED INSIDE DIAMETER1.010 INCHES MINIMUM AND 1.120 INCHES MAXIMUM SECOND STEP
FLANGE DIAMETER1.781 INCHES NOMINAL
FLANGE SEAT TO DISK END HEIGHT0.438 INCHES NOMINAL
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE1.562 INCHES SINGLE THREADED PORTION
SEAT ANGLE IN DEG42.000 NOMINAL
SEATING SURFACE SHAPEANGULAR
UNDER FLANGE HEIGHT0.375 INCHES NOMINAL
STYLE DESIGNATORTHREADED FLANGED
THREAD CLASS2A SINGLE THREADED PORTION
THREAD LENGTH0.375 INCHES NOMINAL SINGLE THREADED PORTION
THREAD QUANTITY PER INCH14 SINGLE THREADED PORTION
THREAD SERIES DESIGNATORUNS SINGLE THREADED PORTION


Click here to Register for Free 30-day Trial

© 2026 NSN-Now. All rights reserved.    Privacy Policy  |  Contact Us