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Alan Nyhus · 02-15-2015, 09:10 PM

Tom, the Dorman number for a 1/2"X20 nut for 3/16" tubing is 490-302. For 1/2"X20 1/4" tubing it's 490-305. In the link I posted earlier they are refered to as 'Oversize Tub Nuts'. The 'oversize' refers to the fact that the nut is larger than the normal brake line nuts for a specific tubing size. -Al

02-15-2015, 09:10 PM	#5
Alan Nyhus VIP Member Join Date: Dec 2002 Location: Lower Dakota territory Posts: 1,180 Likes: 1,074 Liked 799 Times in 236 Posts	Re: Master Cly Install Help Tom, the Dorman number for a 1/2"X20 nut for 3/16" tubing is 490-302. For 1/2"X20 1/4" tubing it's 490-305. In the link I posted earlier they are refered to as 'Oversize Tub Nuts'. The 'oversize' refers to the fact that the nut is larger than the normal brake line nuts for a specific tubing size. -Al __________________ "That'll never work....."