3120-15-105-2984

3040-01-135-0531 3040011350531 011350531 SHAFT

5310-00-135-0531 5310001350531 001350531 WASHER,SPRING,ACTUA

5960-15-135-0531 5960151350531 151350531 is an inclosure, including two or more electrodes, in which a flow of electrons may occur through a vacuum or a contained gas. the electronic conduction takes place either by means of electrons emitted from a cathode or by ionization of the contained gas. includes phototubes (photoemissive type only), geiger-mueller tubes, traveling wave tubes, cathode ray tubes and microwave tubes (klystron, magnetron, or the like). excludes items whose primary purpose is to produce light energy. also excludes photoelectric cell; and semiconductor device (as modified).

1680-25-135-0531 1680251350531 251350531 is the main shock absorption portion of an aircraft landing gear, consisting of the main cylinder and piston and other associated parts. may be with or without axle(s). excludes landing gear, fixed and landing gear, retractable.

5305-99-135-0531 5305991350531 991350531 is an externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). no. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. a locking feature may be incorporated in the design of the head or threads. excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. see also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.