Need belt for necchi supernova automatica sewing machine

Check here. Results are usually good.
Sewing Parts Online

go to the facebook group that is for necchi sewing machines, they may can help you https://www.facebook.com/profile.php?id=274550172743404

Most sewing machines can use a double needle, the one with the single mounting shank and it turns into two needles.
MAKE sure you have Zig Zag needle plate installed to accomodate the double needle.
Turn hand wheel slowly to test then use thread and fabric and turn flywheel by hand to test sew.

Necchi BF is a straight stitch machine
Necchi BU is zig zag machine
Necchi BU Supernova had cams for additional stitches

check this link for parts and see if it's what you need

http://www.sewingpartsonline.com/necchi-supernova-ultra-mark-2-sewing-machine-parts.aspx

check with these sites for the part--call them or email them

sewvacdoctor.com
a1sewingmachines.com

Just measure the existing belt and go from there. Besides the supernova and supernova ultra are likely to use the same belt.

Contact Necchi directly (800-525-9987) and speak with the Service manager who may be able to get the part for you if they are available anywhere.
sewman7

Try ebay for a parted out machine.

the manual for Necchi 4575 sewing machine can be found at this link: http://www.allynint.com/cgi-bin/SoftCart.100.exe/scstore/p-4575-1.html?L+scstore+idst9303+1203579728

or this address and telephone number:

Allyn Internation
1075 Sante Fe Dr.
Denver, Co 80204
1-800-525-9987
303-825-5200

hope you find what you need

Ane