can i replace a flanged nut with a regular nut and lock washer?

[007brendan]

Just wondering.  My but is a little tore up.  Kind of hard to find flanged nuts.

[adidasguy]

Generally yes.
Things like head bolts - use the right one. Nearly all other nuts, a nut and washer will work. and remember threadlock is your friend (right up there with duct tape)

[sledge]

Why not go with a nyloc nut and a flat washer 

[007brendan]

Why not go with a nyloc nut and a flat washer 

Yeah, there ended up not being enough room for washer and nut.  I ended up using a nyloc nut.  The original was a 14mm with flange. I used a 17mm nyloc without flange, which is just about the same size back.