Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MIL-S-24149 4-1.437 IN found under Stud Welding by Erico Fastening Systems. The National Stock Number assigned to this part is 5307012659061, 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 MIL-S-24149 4-1.437 IN.