"1.9991 TO 2.0006 IN. OD; ASSEMBLYOF RING,GIMBAL P/N 677009; SPINMOTOR ASSEMBLY P/N 690812-1; SHELL ASSEMBLY MATCHED P/N 679782-1; BALANCE CONDITIONOF ROTOR SHALL APPLY AT 155 DEGS F,PORM 10 DEGS F AND AT 24,000 RPM; TEMP CYCLE FILLED ASSEMBLY 3 TIMES MIN FROM -55 DEGS F TO/-85 DEGS F TO +197 DEGS F/+227 DEGS F AT A MAX RATE OF 35 DEGS F PER MIN"