5950-00-075-2254 COIL,ELECTRICAL Index 4820-00-075-2256 SEAT,VALVE

National Stock Number:
4820-00-075-2255

Federal Supply Class:
4820

National Item Identification Number:
000752255

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:
1452199643EATON AEROSPACE LLC


Techincal Specification:
BODY OUTSIDE DIAMETER0.262 INCHES MINIMUM AND 0.264 INCHES MAXIMUM
BODY STEPPED INSIDE DIAMETER0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM SECOND STEP
BODY STEPPED INSIDE DIAMETER0.125 INCHES NOMINAL FIRST STEP
FLANGE DIAMETER0.371 INCHES MINIMUM AND 0.373 INCHES MAXIMUM
FLANGE SEAT TO DISK END HEIGHT0.200 INCHES MINIMUM AND 0.202 INCHES MAXIMUM
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 CL 416 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
SEATING SURFACE SHAPEFLAT
STYLE DESIGNATORPLAIN FLANGED
UNDER FLANGE HEIGHT0.138 INCHES MINIMUM AND 0.143 INCHES MAXIMUM


Click here to Register for Free 30-day Trial

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