National Item Identification Number
01-231-9566
012319566
6650-01-231-9566
6650012319566
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)
19133
MCDONNELL DOUGLAS CORP
MCDONNELL DOUGLAS AEROSPACE
3370 MIRA LOMA AVE
ANAHEIM
CA
92803
714-762-5427
Reference Numbers (Part Numbers)
509-201021-1
Required Categories
Required Description