I acquired a 40-060660 Vivitar/Tasco Telescope with no eyepiece and all other attachments missing. I cannot find a manual or parts list online or a place to buy parts online.

Ebay has them under telescope eyepiece catagory

I assume you mean the eyepiece. This telescope uses 1.25 inch eyepieces. Maximum magnification is 400x on a perfect seeing night.
I would start with a 20mm plossl which would give you 33x. Enough to see the moon and Jupiter/Saturn. If you get interested, then buy more eyepieces and most important a moon (neutral density) filter.
telescope focal length (675)/ eyepiece focal length = magnification
Good places for eyepieces are Ebay, Astronomics, Smart Astronomy

You can buy eyepieces from several internet retailers. Measure the hole. Eyepieces come in 3 sizes.

.965, 1.25, and 2 inch sizes.

See these web sites-

http://www.optcorp.com/category.aspx?uid=30-719

http://www.agenaastro.com/

http://shop.telescope-warehouse.com/

Many internet retailers sell eyepieces. Here are two:

http://www.telescope.com/control/category/~category_id=eyepieces

http://www.agenaastro.com/Eyepiece-Brand-s/127.htm

You can buy an eyepiece from 1000 different retailers-- just get the correct SIZE usually 1.25 inch BUT many of these smaller scopes have .965 eyepieces-- MEASURE the hole. Here are two places that sell eyepieces--

http://www.telescope.com/control/category/~category_id=eyepieces

http://www.agenaastro.com/

You don't need to get Vivitar brand eyepieces to get replacement ones for your telescope. I'm not sure of the specifications for this particular telescope but in general they come in two barrel sizes for the eyepieces. The diameter of your eyepiece is probably 0.965" but could come in the more standard 1.25". You can measure the diameter and determine this quickly.

Once you know the diameter to shop for you can look for the focal length of the eyepiece you wish to purchase. They are rated such as 4mm, 10mm, 25mm, etc. The smaller numbers give you higher magnification. You can calculate the magnification by dividing the telescopes focal length by the eyepiece focal length. For example, let's say your telescope is has a focal length of 360mm and you have an eyepiece rated 10mm. Divide 360 by 10 and that gives you a magnification power of 36.

You can find eyepieces at many telescope dealers on the internet. Your selection will be far less if you use 0.965" eyepieces. You can purchase 0.965" to 1.25" adapters so that you can use the larger eyepieces with your telescope. However, on some telescopes the adapters will cause the new eyepiece to not come into focus.

You'll also find that eyepiece prices go all over the place. A good general purpose eyepiece is a type called the Plossl. The better eyepieces have more coatings too that allow more light to get through to your eye. You'll find these listed with terms like "fully multi-coated".

I hope this helps.

Good luck and clear skies!

-jodair

this can be obtained by calling bushnell customer service at 1-800-423-3537. additional a parts order form can be found at www.bushnell.com under customer service parts information.

You won't find a manual for this small telescope-- put the lowest magnification eyepiece (the one with the largest number written on it)-- into the telescope. Take it outside during the daytime and practice focusing it on a distant object -- by turning the focusing knobs slowly in and out.

Probably -- the 4mm gives too much magnification for you telescope-- difficult to focus or find thing in the sky-- you should also have had an eyepiece somewhere between 17mm and 24mm for lower power viewing.

You probably cannot get replacement parts for that telescope. Your next best bet is a well stocked hardware store-- for some hardware to repair the tripod.