Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MS21250-08052 found under Bolt Shear by Air World Mfg. The National Stock Number assigned to this part is 5306000039388, and the Federal Supply Class is 5306 Bolts. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like MS21250-08052.