NSN 6650-01-037-2177 344891, 34489-1, 01-037-2177

6650-01-037-2177 A cylindrical, externally threaded item having a centrally located hole specifically designed to retain by means of either a raised box (shoulder), or counterbore, countersink, or a similar shaped recess, an optical element such as a lens, reticle, cell, and the like, in optical assemblies. It must have drilled holes or slots to facilitate assembly and disassembly. For items which house the optical element(s), and form the internal or central portions of an optical system, see CELL, OPTICAL ELEMENT. Excludes RING, EXTERNALLY THREADED.20312400038Optical Sighting and Ranging Equipment58550055Night Vision Equipment, Emitted and Reflected Radiation66500063Optical Instruments, Test Equipment, Components and Accessories

Part Alternates: 344891, 34489-1, 6650-01-037-2177, 01-037-2177, 6650010372177, 010372177

Instruments and Laboratory Equipment | Optical Instruments, Test Equipment, Components and Accessories