Component reference designator ID (from seb) - ANSI reference designators.pdf
On Sat, 31 Jul 2010 12:23:24 -0500, John Fields
wrote:
Right. We use M to designate mechanical parts on assembly drawings (a
screw might be M1, a cover M2). We use A for a formal subassembly,
something that has its own parts list.
John
|