Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number H 300 080 012 JQ found under Screw Cap Socket Head by B And B Specialties Inc. The National Stock Number assigned to this part is 5305012241450, 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 H 300 080 012 JQ.