Stock

Airframe:
Structural components
Electrical:
Switches/ Relays/ Circuit Breakers/ Lamps etc
Instrument & Avionics:
Rate of climb / Air Speed / Horizon / Gyro's / Fuel Qty / Temp / Attitude etc
Hydraulics:
Servos / Pumps / Valves etc
Hardware:
MS / AN / NAS – Bolts / Nuts / Clamps / Washers / Screws / Studs  etc.
Bearings:
Fafnir, Shafer, TWR, Rollway, RBC, & many more
Engine Parts:
Allison 250 / C28/ C20
Pratt & Whitney T53
Avco Lycoming PT6
Rolls Royce RB211
 
 

A57