Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 7M1038-250R found under Coupling Clamp Groo by Monogram Aerospace Fasteners Inc. The National Stock Number assigned to this part is 5342013459865, 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 7M1038-250R.