Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 7 CFR 58.2621-2635 found under Butter by United States Dept Of Agriculture. The National Stock Number assigned to this part is 8910010725653, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 7 CFR 58.2621-2635.