feat criticality code justification, deep look event special features, item material is steel,per ams6444; outside dia. is 7.758 in. min. and7.760 in. max.; inside dia. is 5.765 in. min. and 5.775 in. max.; thickness is 0.230 in. min. and 0.235 in. max.; part of a barrel assy which is used ona variable pitch acft propellar general characteristics item description