Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S6122-87730-4 found under Collar Reception Coupling Flight by Rotair Industries Inc. The National Stock Number assigned to this part is 1680000640295, 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 S6122-87730-4.