main landing gear, drag linkage assy, f-15 a/d acft end item identification, bushing set,lower drag brace assy part name assigned by controlling agency, bushing set includes p/n's 7829424-53 (2 ea), 7829424-54 (2 ea) & 7829424-57 (2 ea);t.o. 4a4-22-4,fig 2-3 special features