Johnson 123
BE CAUTIOUS: bearing [crushing] strength of a washer is an important mechanical feature. IF understrength [low yield/crush], then joint will likely loosen in-service!
Per MIL-HDBK-698, Table XXI...
Alloy 360 [KSI]...
Strain temper UTS TYS %El
H [<0.187 thick] 80 45 -ns-
1/2H [<0.50 thick] 57 25 7%
Regards, Wil Taylor
o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", Homebuiltairplanes.com forum]