Originally Posted by phoenix1
hi sorry about the delay in getting back but the washer is the key and silver is 75 ft/lb and the black is 90ft/lb.They are tensioned in three steps using motor oil only. The contact at brooks is Jerry Sweeeney and he is very helpful. Their number is 7147783315
That means I have the 190,000 psi 8740 Chrome Moly. The black washer would be an upgrade to 220,000 psi (probably Inconel 718).
Thanks, data added to file. Dave