Boeing protrusion PS 19145? Boeing protrusion PS 19145? quocdat1963 (Aerospace) (OP) 26 Jun 15 03:41 I would like to know what is the Boeing PS 19145? Could any one help me? RE: Boeing protrusion PS 19145? racookpe1978 (Nuclear) 28 Jun 15 23:10 It is probably a Boeing weld process specification. Most likely proprietary data - they will not not likely share details publicly if you do not have a contract with them. RE: Boeing protrusion PS 19145? BUGGAR (Structural) 1 Jul 15 14:33 It could also designate a Boeing proprietary extrusion (extruded shape). They have their own numbering system for these. They're usually special shapes made for specific uses on their planes. I've seen them listed in aluminum product lists but they never show what they look like or their dimensions. Even though they're proprietary, you can sometimes find pieces of things like this at Boeing Surplus up in Renton.