Mak,
what are you trying to do?
1 Use an aviation headset on something else? or,
2. Connect a non standard headset to an aircraft?
The headphone side is easy to deal with but the microphone on an aviation headset is high output, with a DC feed on the microphone line, to drive either an old Carbon Mic or an Amplified Electret or Dynamic mike. You cannot use an unamplified dynamic mic as it won't have enough output and will need isolating from the DC supply.