Some items from this specific schematic: Bolt,flange,6x14, Tube,pcv, Valve Assy., Pcv, Washer,plug Drain 14.
Check out any of the six Breather Cover components enlisted.
With all the components that make up the CIVIC 2001 (1) 4DR DX A/C (KA) BREATHER COVER assembly. The Bolt,flange,6x14 is the most frequently specified with six applications.