Though Bob Barker makes a valid point, I've found that with the cheapies, your Local Bike Store (LBS) has parts; they use really generic ones; Wald, Pyramid, Sun..easy pts.
Hey, what have you got to lose ? What's the worst that'll happen / Something will get busted ? ordering parts, over anylizing is unproductive. Basic tools in addition to the special tools which the shop can use on it , a small calculated risk.
IF you're at handy ! The place I use has plenty of common, cheap stuff. LOTS o' beach cruisers down here.