A device with means other than fuses for automatically opening the circuit in which it is installed when the current varies from the predetermined value for which the device is set. May include provisions for manual operation. At least one set of contacts must be in series with the actuating element(s). A combination of semiconductor and passive devices may be used in lieu of contacts. For automatically operated items in which the actuating (tripping) element and contacts are not in series, see relay (as modified). For items which are operated both manually and automatically but the actuating elements and contact are not in series, see relay-switch. Excludes circuit breaker box and magneto "breaker" assemblies. See also switch (as modified); and controller.
Classification: Parts, nesoi, of bearing housings & plain shaft bearings, housed bearings, clutches, universal joints, flywheels and transmission shafts
NSN 6220-01-479-7249
NSN 6130-00-833-7763
NSN 5975-01-111-2665
NSN 4140-00-914-7949
NSN 5999-00-857-1975
NSN 5915-01-232-4788
NSN 7035-01-361-4176
NSN 6610-01-184-3210
NSN 6620-01-230-0197
NSN 5998-00-137-2976
NSN 5905-01-147-5240
NSN 6130-01-441-0955