Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BTNY-167BK found under Fastener Spring Tension Trim by Catamount Mfg Inc. The National Stock Number assigned to this part is 5325000270191, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BTNY-167BK.