B-48-02-02 - 1/8" x 1/8"
B-48-03-02 - 3/16" x 1/8"
B-48-04-02 - 1/4" x 1/8"
B-48-04-04 - 1/4" x 1/4"
B-48-04-06 - 1/4" x 3/8"
B-48-04-08 - 1/4" x 1/2"
B-48-05-02 - 5/16" x 1/8"
B-48-05-04 - 5/16" x 1/4"
B-48-05-06 - 5/16" x 3/8"
B-48-06-02 - 3/8" x 1/8"
B-48-06-04 - 3/8" x 1/4"
B-48-06-06 - 3/8" x 3/8"
B-48-06-08 - 3/8" x 1/2"
B-48-06-12 - 3/8" x 3/4"
B-48-07-06 - 7/16" x 3/8"
B-48-08-04 - 1/2" x 1/4"
B-48-08-06 - 1/2" x 3/8"
B-48-08-08 - 1/2" x 1/2"
B-48-08-12 - 1/2" x 3/4"
B-48-10-06 - 5/8" x 3/8"
B-48-10-08 - 5/8" x 1/2"
B-48-12-08 - 3/4" x 1/2"
B-48-12-12 - 3/4" x 3/4"
B-48-14-12 - 7/8" x 3/4"
B-48-16-16 - 1" x 1"

This brass hydraulic SAE 45° fitting is equivalent to the following:
-SAE 010102
-Eaton Weatherhead 48