Well, as the song goes;
"You really got me going, now" ......
Through the years, Ruger keeps changing their parts. However, I don't think we are on the same page. You say that you only got the Trigger itself and earlier you said you also got a Hammer. Could you send me the part number of the kit? All of the sears and disconnectors that I have worked with, have a distinctive bored pocket and the sear spings fits loose. The only tapered small spring that I have seen, was the OEM trigger return spring.
Typically, the Volts. and Power Custom kits, contain the following.
Target Hammer
Hammer Spring
Trigger Return Spring
Hammer Bushings
Hammer Shims.
This is just the basic kit and there are other kits that can contain more parts.
Be Safe !!!