68-3257 BSA A65 A50 Clutch connector assembly Norton Using a caliper the OD

Using a caliper the OD measures 1/2" and the ID measures 3/8" / Since pipe fittings are measured by the ID of the devise they are technically 1/4" x 1/8" and that is BSP

Custom Bundle: NO

This product is New - Triumph unit 500 twin piston set standard pistons Early 1959 to 1966 T100C T100

One for the left and one for the right

444 would be 1/4 British Standard or 3/16WW

68-3257 BSA A65 A50 Clutch connector assembly Norton Using a caliper the ODYou will get a brand new BSA A65 A50 Clutch connector assembly Condition: NEW Brand: STEADFAST CYCLES Part Brand: STEADFAST CYCLES Country Region of Manufacture: UNITED KINGDOM Manufacturer Part Number: 68 3257