National Item Identification Number
00-125-0774
001250774
5855-00-125-0774
5855001250774
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)
SMC657309
Required Categories
MATERIAL
SURFACE TREATMENT
OUTSIDE DIAMETER
INTERNAL FLANGE THICKNESS
MOUNTI
Required Description
ALUMINUM ALLOY, QQ-A-601, ALLOY 356, T6
DULL BLACK
2.250 INCHES NOMINAL
0.031