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.
NSN: 1240-00-443-1021
What are the manufacturers of nsn 1240004431021?
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Does this nsn 1240004431021 have a shelf life? No. This NSN does not have an applicable shelf life. |
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What is the formal definition of nsn 1240004431021 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. |
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Does nsn 1240004431021 contain any precious metals? Precious metal content is unknown. |
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Does nsn 1240004431021 contain any hazardous materials? No MSDS. No hazardous material. |
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What is the ESD classification of nsn 1240004431021? No known electrostatic discharge. |
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