Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LK1191-06P4 found under Screw Cap Socket Head by Torkon Fastener Corp. The National Stock Number assigned to this part is 5305001417174, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like LK1191-06P4.