BSA B33,M33,B34 INLET VALVE MADE BY ALPHA

EARLY BSA PARTS BOOKS ARE VAGUE AND TEND TO COVER MORE THAN 1 YEAR SO I HAVE GIVEN DIMENSIONS TO HELP.

STEM DIA. .348"

HEAD DIA. 1.657"

LENGTH 3.824"

WEIGHT 95 GRAMS

PLEASE BEAR IN MIND THAT THIS VALVE HAS BEEN RATTLING ABOUT IN A PARTS DRAWER FOR 60 ODD YEARS AND MAY HAVE THE ODD BLEMISH.