National Item Identification Number
00-618-1118
006181118
6650-00-618-1118
6650006181118
National Stock Number
Item Name
PRISM,OPTICAL INSTRUMENT
Federal Supply Class
6650
Description
A transparent item with at least two polished plane surfaces inclined toward each other, designed for use in optical instruments to reflect and/or refract a beam of light. It may have one or more mirrored surfaces for greater reflection. Includes optical wedges used to divert paths of light by refraction, but to a lesser degree. See also BEAM SPLITTER, OPTICAL INSTRUMENT.
Commercial and Government Entity Code (Supplier Data)
19200
Reference Numbers (Part Numbers)
6181118
Required Categories
MATERIAL
STYLE DESIGNATOR
LIGHT DEVIATION
SPECIAL FEATURES
III FSC APPLICATI
Required Description
GLASS, OPTICAL, MIL-G-174, GRADE B, TYPE 517-645
G3 PORRO
90 DEG
ERECTING SYS