Atwood drain hole is 1'2" NPT
Hex head has changed sizes.........7/8" or 15/16" socket
Should be able to start using fingers until hand tight then just snug up with a socket. Tapered pipe threads.
You can easily 'chase' the drain hole threads by screwing in a 1/2" NPT pipe nipple. Cleans/straightens threads.
Nylon is used due to temperature rating.
PVC is not high enough temp rating (never use) and CPVC just meets temp rating (OK for emergency until OEM nylon can be found)
Is it time for your medication or mine?
2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31