Boss
An enlarged area in a casting or machined part. A boss provides additional strength to the part where holes for mounting or attaching parts are drilled.
Aviation Maintenance Technician Handbook — Powerplant, p. G-4
An enlarged area in a casting or machined part. A boss provides additional strength to the part where holes for mounting or attaching parts are drilled.
Aviation Maintenance Technician Handbook — Powerplant, p. G-4