main landing gear,shock strut assy, f-15 a/d acft end item identification, bushing set includes p/n's 7829421-01 (2 ea), 7829424-85 (1 ea), 7829424-83 ( 1 ea), 7829424-89 (1 ea);t.o. 4a4-22-4,fig 2-4 special features, bushing set,torque collar assy part name assigned by controlling agency