There is gusset.
A ridge item, usually of flat material, formed into a dihedral angle (generally a right angle) which may be reinforced; it is designed to position, align, or support an item(s) in relation to another. Excludes brace (as modified); bracket (1), mounting; and bracket, shelf.
Classification: Hat-racks, hat pegs, brackets and similar fixtures, and parts thereof, of base metal
NSN 6150-00-643-0460
NSN 6685-01-548-0867
NSN 6135-00-269-5843
NSN 6240-01-598-2191
NSN 6610-01-378-8422
NSN 5998-01-633-1995
NSN 6620-00-335-9462
NSN 5998-01-100-0910
NSN 6685-01-483-6199
NSN 5965-01-643-0703
NSN 5930-01-496-0999
NSN 6650-01-378-7875