Product review (5 stars): exact replacement for bake ignitor amana ACS3350AS
http://www.amazon.com/gp/product/B003BIGDEU/ref=cm_cr_ryp_prd_ttl_sol_1 GE WB2x9998 flat oven ignitor was an exact replacement part for Amana part 31939901 for oven ACS3350AS.  The Norton 501A ignitor is also an exact match for this ignitor.  In fact, they all have a tag with "Norton 501" (or "Norton 501A" - depends on if it shipped with wire nuts or quick connect plug on the wires).

The only difference I found was that the Amana part included a quick disconnect hard wired on the ignitor.  I had to cut off the original quick connect and strip a 1/4" off the stubs to connect to the shipped ignitor.  The package came with instructions and the ceramic (high temp) wire nuts to make the connection.  I could do all that on the counter top.  Once that was finished (a 2 minute job) I could install the new ignitor and plug it in to the wire harness.