Special Features:

Used on night vision goggle, mir 0006243683 mmr 104046548, p/n 277971 is comprised of objective lens p/n 268788 and lif adapter p/n 5009492

Properties:

An item consisting of a cell, optical element in which is secured one or more optical elements, such as lenses, reticles, filters, windows, and the like. May include retaining rings, spacers, and/or separators. For items with focusing facilities and/or a diopter scale, see eyepiece assembly, optical instrument.