The T-62A was rather conventional tank, which is no surprised as it was based off the T-55 and Object 142 tank. However the gun itself was the main attraction, the T-62A was armed with the U-8TS which fired a APDS round at 1535m/s which enabled it to penetrate 310mm at 1000 meters. Unlike other Soviet tanks it had good gun depression with -7 to 16 degrees of gun traverse. There were 43 rounds of ammunition for main gun, along with 3,000 rounds for the two 7.62mm machine guns. The ammunition composition was 40% APDS, 40% HE and the remaining 20% HEAT. It had average fire control with the gun being aimed through a TSH2A telescopic sight. It was stabilized the "Comet" stabilizer which was based off the "Downpour" stabilizer on the T-10M. A novel feature of the T-62A was the mechanism to remove spent shells from a hatch at the back of the turret. This was implemented to reduce fumes in the fighting compartment.
The T-62A had comparable mobility to the T-55 of which it was designed to replace; the 580hp V-55V gave the T-62A a top speed of 50km/h. The average speed on paved road was 26.6km/h to 34.2km/h and on dirt road it was 19.8km/h and 24.8km/h. The T-62A contained 680 liters of fuel(plus an optional external 280 liters) which gave it 500km of range.
The T-62A was an evolutionary step in the design of Soviet medium tanks; while it did not have many revolutionary features it did present a dangerous threat to its NATO competitors. However the Soviets quickly realized in the production of the T-62A that APDS was a dead end compared to APDSFS and so the T-62A was overshadowed by its more numerous brother the T-62. Despite its short life the T-62A did influence Soviet tank design in a big way. The T-62A formed the basis for what would be become the T-62 and it would also provide the impetus for A.A. Morozov to design the T-64.