National Item Identification Number
00-302-1331
003021331
6650-00-302-1331
6650003021331
National Stock Number
Item Name
RING,RETAINING,OPTICAL ELEMENT
Federal Supply Class
6650
Description
A cylindrical item having an internally flanged diameter designed to retain a lens or window in the objective end, or a diopter scale at the viewing end of an optical instrument. It may have one or more of the following characteristics: internal thread or machined for a press fit, method of securing, and/or knurled periphery. For externally threaded items, see RETAINER, OPTICAL ELEMENT. Excludes CELL, OPTICAL ELEMENT; NUT, PLAIN KNURLED; NUT, PLAIN ROUND; and RING, RETAINING.
Commercial and Government Entity Code (Supplier Data)
19200
Reference Numbers (Part Numbers)
8200244
Required Categories
MATERIAL
SURFACE TREATMENT
OVERALL LENGTH
OUTSIDE DIAMETER
INTERNAL FLANGE T
Required Description
ALUMINUM ALLOY, QQ-A-225/6, T4
ANODIZED BLACK
0.156 INCHES NOMINAL
2.187 INCH