NSN 6650-00-186-5966

Part Details | OPTICAL ELEMENT RETAINING RING

6650-00-186-5966 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.

Alternate Parts: 8620178, 6650-00-186-5966, 00-186-5966, 6650001865966, 001865966

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66FEB 19, 197100-186-596622585 ( RING, RETAINING, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6650-00-186-5966
Part Number Cage Code Manufacturer
862017819200US ARMY ARDEC RDECOM
Technical Data | NSN 6650-00-186-5966
Characteristic Specifications
THREAD LOCATION INTERNAL
THREAD SIZE1.344 IN.-32
SCREW THREAD SERIES DESIGNATOR UNS
THREAD CLASS2B
THREAD LENGTH0.187 INCHES
THREAD DIRECTION RIGHT-HAND
OVERALL LENGTH0.281 INCHES NOMINAL
OUTSIDE DIAMETER1.688 INCHES NOMINAL
INTERNAL FLANGE THICKNESS1.344 INCHES NOMINAL
MOUNTING CONFIGURATIONINTERNAL THD