OK, this shouldn't be this hard...

Need stem/bonnet beveled washer for several hose bibbs--can't find
proper size locally even at the plumbing distributor nor after looking
through all the assortments at all the hardware stores--and, no, I'm
not even close to a borg...

Anybody have source to find beveled washers of following two sizes--

5/16" ID, 13/16" OD, 3/16" T
5/16" ID, 13/16" OD, 3/8" T

Could probably make do w/ 1/4" ID and 3/4" OD.

Need half-dozen or so of each...