National Item Identification Number

00-398-1821
003981821
6650-00-398-1821
6650003981821

National Stock Number

Item Name

IRIS DIAPHRAGM,OPTICAL INSTRUMENT

Federal Supply Class

6650

Description

An adjustable item of thin, overlapping opaque plates which are actuated by a ring or other device so as to change the diameter of a central opening, for controlling the intensity of transmitted illumination. It is usually employed to regulate the aperture of a lens in microscopes, and other optical instruments.

Commercial and Government Entity Code (Supplier Data)

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72314

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Reference Numbers (Part Numbers)

653L7

Required Categories

SPECIAL FEATURES
THE MANUFACTURERS DATA
MANUFACTURERS CODE
DESIGN CONTROL REF

Required Description

FIVE-LEAF TYPE, WITH CONNECTING LINKAGE AND MOUNTINGS
72314
653L7