M	B	-	5	R	A	9	-	SA
Master (MB) or (MX)									Structurally Attached
Single Post
(1.375)
(1.500)
(1.750)
Strut Support
14" Strut (14SA9)
18" Strut (18SA9)
Roller Support
5" IPS Roller (5RA9)
8" IPS Roller (8RA9)
Master Base
(146C)