Used on actuator hydraulic - los angeles class ssn (688). 2a external thread class right-hand external plug plug, tube fitting flared (note: drilled hole is optional should not be considered as a separating characteristic npt external thread series
Used on 6640-01-399-0483. 14 all ends thread quantity per inch 90 deg elbow, cast bronze, 3/4 npt, 125 psi thread engagement, both ends, is 0.687 in npt all ends thread series