Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 33311 30 ITEM NO 17A 1 00IN found under Stud Continuous Thr by Velan Valve Corporation. The National Stock Number assigned to this part is 5307015039448, 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 33311 30 ITEM NO 17A 1 00IN.