| 1641-040 | Union, 1/2 in (hoses and clamps) | Stanley G. Flagg | | |
| 1641-100 | Union, 300 PSI, black, 1/2 in (actuating and independent piping) | Stanley G. Flagg | | |
| 1641-150 | Union (brake cylinder piping) | Stanley G. Flagg | | |
| 1641-400 | Union, black pipe, 300 PSI, 2 in (main air piping) | Stanley G. Flagg | | |
| 1643-060 | Union, elbow 90 , 3/8 in (generator, main) | Stanley G. Flagg | | |
| 1643-100 | Elbow, union, 90 degree, 1/2 in (actuating and independent piping) | Stanley G. Flagg | | |
| 1643-150 | Elbow, unioin, pipe, 3/4 in (brake cylinder piping) | Stanley G. Flagg | | |
| 1643-200 | Elbow, union, black, 90 degree (main air piping) | Stanley G. Flagg | | |
| 1643-400 | Elbow, union, 90 degree, 2 in (main air piping) | Stanley G. Flagg | | |
| 1647-100 | Tee, union, female run (actuating and independent piping) | Stanley G. Flagg | | |
| 1647-150 | Tee, union, female (brake cylinder piping) | Stanley G. Flagg | | |
| 1647-200 | Tee, union, female run (sand system piping) | Stanley G. Flagg | | |