Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 63700-002 found under Headset Microphone by Telex Communications Inc. The National Stock Number assigned to this part is 5965011921346, and the Federal Supply Class is 5965 Headsets Handsets Microphones And Speakers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 63700-002.