As used in this section-
Component means an item that is useful only when used in conjunction with an end item ( 15 CFR 772.1 and 22 CFR 120.45(b)).
Item means-
Part means any single unassembled element of a major or minor component, accessory, or attachment, that is not normally subject to disassembly without the destruction or impairment of designed use ( 15 CFR 772.1 and 22 CFR 120.45(d)).
48 C.F.R. §225.770-1