Coupling nut
ITEM NO.
A
B
C
A311-520
5/16-18
7/8
9/16
A311-540
3/8-16
1
11/16
A311-560
1/2-13
1-1/4
7/8
A311-580
5/8-11
1-5/8
1-1/16
A311-600
3/4-10
1-7/8
1-1/4
A311-620
7/8-9
2-1/4
1-7/16
A311-640
1
2-1/2
1-5/8