NSN 6650-01-256-9151

Part Details | OPTICAL ELEMENT RETAINING RING

6650-01-256-9151 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: 422821, 42282-1, 6650-01-256-9151, 01-256-9151, 6650012569151, 012569151

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66JUN 10, 198701-256-915122585 ( RING, RETAINING, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6650-01-256-9151
Part Number Cage Code Manufacturer
42282-109344ROCKWELL COLLINS, INC.DBA RC DISPLAYS SYSTEMS
Technical Data | NSN 6650-01-256-9151
Characteristic Specifications
MATERIAL ALUMINUM ALLOY
THREAD LOCATION EXTERNAL
SCREW THREAD SERIES DESIGNATOR UNS
THREAD CLASS2A
THREAD PITCH DIAMETERS+4.3484 TO +4.3533 INCHES
OUTSIDE DIAMETER4.375 INCHES NOMINAL
SPECIAL FEATURES63 MICROINCH SURFACE FINISH
END ITEM IDENTIFICATION1270-01-072-4555 HELICOPTER SIGHT