§ 183.556. Plugs and fittings.
44 words·~1 min read·
/us/cfr/t33/s§ 183.556·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
(a)A fuel system must not have a fitting for draining fuel.
(b)A plug used to service the fuel filter or strainer must have a tapered pipethread or be a screw type fitted with a locking device other than a split lock washer.