Part Details | VALVE SEAT REFACING PILOT
4910-00-423-6721 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.
Alternate Parts: 21304, 4910-00-423-6721, 00-423-6721, 4910004236721, 004236721
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 49 | JAN 01, 1963 | 00-423-6721 | 11030 ( PILOT, VALVE SEAT REFACING ) |
REFERENCE DRAWINGS & PICTURES
COUNTER BORED GUIDE
Cross Reference | NSN 4910-00-423-6721
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 21304 | 07429 | BLACK AND DECKER US INC |
Technical Data | NSN 4910-00-423-6721
| Characteristic | Specifications |
|---|---|
| DESIGN TYPE | EXPANDING |
| SIZE | 0.3750 INCHES NOMINAL |
| STYLE DESIGNATOR | COUNTER BORED GUIDE |
| EXPANDING PILOT LOWER END LENGTH | 3.156 INCHES NOMINAL |
| EXPANDING PILOT UPPER END LENGTH | 1.531 INCHES NOMINAL |
| UPPER END DIAMETER | 0.375 INCHES NOMINAL |