National Item Identification Number
01-348-4805
013484805
6650-01-348-4805
6650013484805
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)
04939
Reference Numbers (Part Numbers)
13230923
13230923
Required Categories
MATERIAL
OVERALL DIAMETER
Required Description
ALUMINUM ALLOY
16.940 INCHES NOMINAL