National Item Identification Number
01-155-3288
011553288
6650-01-155-3288
6650011553288
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)
18876
Reference Numbers (Part Numbers)
13144027
13144027
13144027
13144027
Required Categories
MATERIAL
SURFACE TREATMENT
THREAD LOCATION
THREAD SIZE
SCREW THREAD SERIES D
Required Description
ALUMINUM ALLOY, QQ-A-225/8, T651
ANODIZED, MIL-A-8625, TYPE 2, CLASS 2
INTERNA