6210-15-198-5667

5305-15-007-7001 5305150077001 150077001 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.

2320-14-492-4614 2320144924614 144924614 CALE

4220-12-302-3140 4220123023140 123023140 is a spherical metal inclosure for a diver's head, designed for use with a diver's dress. usually furnished with a breastplate of like material. excludes helmet, deep-sea diver's, helium-oxygen. see also helmet, shallow water diver's.

5996-01-559-2621 5996015592621 015592621 is an electronic device whose audio frequency input signals control power from a source independant of the input signal and delivers audio frequency output signals of greater amplitude with respect to current and/or voltage. the output signals characteristics are uniformly related to the input signals. it operates at frequencies of 20 kilohertzs and below. it may or may not have signal switching capabilities.

2940-27-007-7001 2940270077001 270077001 is a filter having inlet and outlet connections and designed to be connected in a pipe, tube or hose line. for spin-on, base-mounted filtering devices with integral outer casings, see filter element, fluid. excludes air conditioner.