Collar has a flnage on one end; used on the heater/ac front
A straight formed fitting with identical internal ends, used to form a connection of two air conditioning-heating fittings.
NSN 5835-01-352-7211
NSN 5930-00-333-9445
NSN 5835-01-250-2939
NSN 5945-00-296-8464
NSN 6610-01-593-0135
NSN 5925-00-030-4943
NSN 5965-01-198-3256
NSN 5998-00-633-5169
NSN 5895-01-518-0960
NSN 6135-01-561-5945
NSN 5998-00-735-5803
NSN 5985-01-339-9743