-8AN Nitrous Bottle Nut Adapter & PTFE Washer. -8AN Nitrous Bottle Nut Adapter & PTFE Washer. Not all nitrous companies use 37° "AN" Fittings in their nitrous kits. To avoid potential leaks, never mix 37° "AN" and 45° SAE fittings.
16232NOS NOS Nitrous Bottle Nut & Washer
-6AN Nitrous Bottle Nut Adaptor CGA 660 for NOS Nitrous Bottle w/ Teflon Washer
-4AN Nitrous Bottle Nut CGA 660 for NOS Nitrous Bottle with Teflon Washer
-4AN Nitrous Bottle Nut CGA 660 for NOS Nitrous Bottle Comes with Teflon Washer