National Item Identification Number
01-067-8841
010678841
5855-01-067-8841
5855010678841
National Stock Number
Item Name
RING,RETAINING,OPTICAL ELEMENT
Federal Supply Class
5855
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)
80063
Reference Numbers (Part Numbers)
SM-C-804271
SM-C-804271
Required Categories
MATERIAL
OUTSIDE DIAMETER
INTERNAL FLANGE THICKNESS
SPECIAL FEATURES
III SUP
Required Description
PLASTIC
4.770 INCHES NOMINAL
0.200 INCHES NOMINAL
SURFACE ROUGHNES TO BE 125