National Item Identification Number
00-423-6721
004236721
4910-00-423-6721
4910004236721
National Stock Number
Item Name
PILOT,VALVE SEAT REFACING
Federal Supply Class
4910
Description
A device which, when inserted into the bore of a valve guide on an internal combustion engine, serves as a center post for aligning and guiding the grinding stone and/or reamer of a valve seat refacer.
Commercial and Government Entity Code (Supplier Data)
07429
Reference Numbers (Part Numbers)
21304
Required Categories
DESIGN TYPE
SIZE
STYLE DESIGNATOR
EXPANDING PILOT LOWER END LENGTH
EXPANDING
Required Description
EXPANDING
0.3750 INCHES NOMINAL
D8 COUNTER BORED GUIDE
3.156 INCHES NOMINAL;