Parts List:

78254-0 Support Assembly (2)

78256-0 Barrel Clamp Assembly (2)

78258-0 Bracket Assembly (2)

78258-1 Bracket Assembly (2)

421-115 Rivet (52)

494-010 Washer (52)

407-584 Washer (14)

400-438 Bolt (2)

420-160 Rivet (4)

401-270 Bolt (8)

407-564 Washer (8)

404-887 Nut (16)

411-534 Screw (8)

554-654 Clamp (8)

Instructions/Parts List/Drawing/Notes

There is also a lock washer and 5 other pieces of hardware I can't identify - the cut off cone-looking things at the lower left corner of the first pic. These appear to be extra hardware because they are not on the parts list.

From the Calaveras Airplane Company (a full-service airplane maintenance company) surplus old stock inventory.