National Item Identification Number
01-155-3289
011553289
6650-01-155-3289
6650011553289
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
26772
Reference Numbers (Part Numbers)
13144096
13144096
Required Categories
MATERIAL
SURFACE TREATMENT
THREAD LOCATION
THREAD SIZE
SCREW THREAD SERIES D
Required Description
STEEL, CORROSION RESISTING
PASSIVATED, QQ-P-35 AND
BLACK OXIDE
EXTERNAL
1.18