Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B311516L195 found under Stud Special by Rollsroyce Airlines. The National Stock Number assigned to this part is 5307010313335, and the Federal Supply Class is 5307 Studs. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B311516L195.