14-0402 lock nut Alloy Nut 5/16 x 24 TPI UNF tappet nut adjuster valve 75% engagement
This product is New - Alloy Nut 5/16 x 24 TPI UNF tappet adjuster valve tappet 75% engagement Triumph T120 T140 T150 T160 TR6 TR7 1969 to 1979
Made in the USA +- .00001"
The T150 parts book shows 14-0402 but we know that this is not just a regular nut.