I lost the manual to my Power Chopper Model PC380A, 120 VAc, 60Hx, 260W Production date 7/04

SOURCE: Help

Ultimate chopper is still in business and direct sells from their own website. This link will take you there:
http://www.ultimatechopper.com/

SOURCE: replacement parts for the "Power Chopper blender"

The Power Chopper

also know as:

Tristar Products, Inc. Power Chopper sold by Walmart

LTK6100 Power Chopper sold by As Seen on TV sites

Tristar lists the following PO Box for warranty repairs.

POWER CHOPPER, P.O. Box 3007, Wallingford, CT 06492.

This is the real manufacturer
Ningbo Vanguard Import & Export Co., LTD
Floor 10,No 181 Zhongshan East Road,Ningbo China
Phone: 86-0574-56152263
Fax: 86-0574-56152258
Contact: muffer (General manager)
Mobile: 15958893499

You can use this link and send them a message about parts. I’m not sure if it will do any good.

http://www.diytrade.com/china/4/products/2906181/power_chopper_juicer_food_processor.html

SOURCE: The housing with 2 blades

You cannot buy spare parts. Like many such products promoted on tv home shopping channels it's a poorly made overpriced item with no aftersales care.

Sorry, but your only fix is to replace the chopper with a better one where more than half of the price isn't used to pay for over-the-top adverts.