Is it possible to order a t520 keyboard for a thinkpad t510 laptop

Question

hi all,
i am just wondering if that is possible because i think it must be something with the design of the t510 since my friend has a t420 and his keyboard feels great. unfortunately this t510 (and for the record i had 3 keyboard replacements) and each of the keyboard felt good initially but after some usage, the keys themeslves felt more resistant to press down. Either I am crazy but i feel that my keyboard goes through phases...where before at first the keys are extremely hard to depress and after a while the keys get really easy to depress and after while of typing on that keyboard it slowly the keys starts to get harder to depress down. It is really hard to believe but it is true. Might be a defect in the t510 keyboard or i am just so unlucky to get the same problem 3 times in a row with these replacement keyboards. lol
thanks
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Answer 1

The keyboard on T510, T520, X220, T410, T420, T410s, T420s, T400s, W510, W520 are all intercompatible. So the answer to your question is yes. 
Just look for the Part number of the keyboard under the keyboard.
What you describe is possible, as initially the various plastic mechanism has not worn in, once it is worn in to the optimal point, the key will feel easier to type on. But as you use it more, the key mechanism will eventually wear out and create the difficulties you explain. 
Just like car engine, there is a wear in period for the engine parts after which the car engine will feel smoother and eventually it will wear out.
P.S. But what you describe will only be noticeable for people whom constantly type on their keyboard at a very fast rate. 
Regards,
Jin Li
May this year, be the year of 'DO'!
I am a volunteer, and not a paid staff of Lenovo or Microsoft