I need a new handle (Part No. 060342-2950A) for my American Standard 6310 faucet.

Take the red/blue plastic plug out and use a hex key to unscrew the handle.

Using the number you gave it is an American Standard faucet here is a link to a parts place.
I would use the factory parts.

http://americanstandard.faucetdirect.com/index.cfm?page=product:partsDisplay&productId=4205.104&manufacturer=American%20Standard

At the base of the handle there is a flow regulating check valve. Shut off water supply and unscrew handle and look for debris. Many times the washers break down on the shutoffs under the sink and release "crumbs", these usually block aerators and sometimes the cartridges on certain faucets. Hope this was helpful.

I had the same problem and contacted American Standard. They had me email them pictures of the problem and sent me a new faucet free of charge.

I have the same problem with an American Standard Reliant Kitchen Faucet that wont swivel anymore. I called American Standard and they are sending me the replacement parts to fix it free of charge, I have had mine 6-7 years and they said it was under warranty. Call 800-442-1902. Good Luck

you must remove the faucet form the sink. under the plate in the middle is 2 screws. remove the screws to remove the body.

soak down with WD40 and try again use a bigger wrench they all come off i have not found any that i have not been able remove!

unscrew a alen screw on the underside of the handle.
unscrew the cap that is holding the main body of the fixture.
pull up the fixture.
install in reverse order.

The metalic taste is coming from the the new faucet

I would call American Standard and ask them if they have any complaints for this particular model

I would run hot water through the faucet for 5 minute intervals

If it persists I would take it back and demand a refund or cal AS and demand a refund or replacement model

I am sure the local news would like to report something like this

sadly not much to be done there but replace the head