Special Features:

7items are being coded as critical to insure source inspection will be performed at the point of manufacture, prior to material receipt by the us navy or other dod components. These items are piece parts or end items in support of vital military hardware necessary to sustain the successful mission of the ships, submarines, and shore stations of the us navy. Critical features including, but not limited to, dimensions, tolerances/clearances, electronic characteristics, and metallurgical properties will bespecified for government q ar (quality assurance representatives) to insure the highest possible degree of quality and reliability of these parts being delivered under navicp contracts; explosive ordnance disposal (eod) nonmagnetic oxygen clean material

Properties:

A buoyant item designed to be worn under the arms and supported by straps across the chest and over the shoulders. Buoyancy is attained by inflation from a gas cylinder and/or orally. See also life preserver, vest and life, preserver, yoke.