Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 28291-1 found under Housing Coupling Ba by Eaton Industrial Corporation. The National Stock Number assigned to this part is 1680012344520, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 28291-1.