National Item Identification Number

00-618-1117
006181117
6650-00-618-1117
6650006181117

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)

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19200

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Reference Numbers (Part Numbers)

6181117

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