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sw/excitation unit part no. 40-750, electromagnetic shutter part no. 12-900, concave grating, 1180 grooves part no. 99-60-20-19, cylindrical quartz lens, 250 mm part no. 18-230, accessory bar part no. 10-010, adjustable bilateral slit part no. 12-000, filter assembly part no. 16-830, cylinder quartz lens, 67 mm part no. 18-160, arc and spark stand part no. 19-300, rf shielding tubing part no. 19-312, exhaust system part no. 19-510, voltage regulator part no. 46-064, master film part no. 22-950
An optical instrument designed to break up the light from a source into its constituent wave lengths and to provide a means of qualitative or quantitative study of the spectrum line formed. The instrument essentially consists of four parts; the slit, the lenses, the dispersion system and photographic or photoelectric system. The instrument may incorporate a prism or grating system for the dispersion of light.
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Precious metal content is unknown
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
HMIC: Hazardous Material Indicator Code. A one position code that identifies a hazardous item.
PMIC: Precious Metal Indicator Code. A one position code which identifies items that have precious metals as part of their content. precious metals are those metals generally considered to be uncommon, highly valuable, and relatively superior in certain properties such as resistance to corrosion and electrical conductivity.
ESD: Electrostatic Discharge. Indicates if an item is susceptible to electrostatic discharge or electromagnetic interference damage. electrostatic discharge damage occurs when an accumulation of static electricity generated by the relative motion or separation of materials is released to another item by direct contact. electromagnetic interference damage occurs when an item comes into proximity with an electrostatic or magnetic field.
ENAC: Enviromental Attribute Code. Identifies items with environmentally preferred characteristics.
CRITL: Criticality Indicator Code. Indicates an item is technically critical by tolerance, fit, application, nuclear hardness properties, or other characteristics.