NSN 4240-01-439-5937

4240014395937

NO

21123

N/A

Spcl

Emergency escape breathing device

Quickly donned in seconds-simply unlatch the case, pull out the unit, and insert the mouthpiece and nose clip; the attached hood can be donned at any time during the escape; certified for 15 years service life; maintenance free for 15 years-only visual inspections by shipboard personnel once every two years; the sealed watertight case protects against harst marine conditions; superior performance with automatic activation, complete protection from life threatening atmospheres and the highest respiratory protection factor available; typical performance duration is between 15 and 32 minutes

Items 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