3a external thread class 0.734" overall length with 0.062 hole drilled through xex head across. passivate body surface treated plug, tube fitting flared (note: drilled hole is optional should not be considered as a separating characteristic unf external thread series
3a all ends thread class bulkhead swagelok tube connection; ethylene propylene seal passivate body surface treated male coupling half unf all ends thread series
Used on submarine; seawolf/heat exchange. 3/4 in pipe-nps for ut insp; assy k, is any assy that contains pc 10, 11, or 12; see note 2.14 i.e. these pcs are restricted to air
Used on multi application/industrial/chemical. used for aerating, brine sprays, chemical processes, degreasing, filter cake washing, fertilizer spraying, cooling towers, washers
