NSN 6650-01-155-3289

Part Details | OPTICAL ELEMENT RETAINING RING

6650-01-155-3289 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: 13144096, 13144096, 6650-01-155-3289, 01-155-3289, 6650011553289, 011553289

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66JUN 08, 198301-155-328922585 ( RING, RETAINING, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6650-01-155-3289
Part Number Cage Code Manufacturer
1314409618876U S ARMY AVIATION AND MISSILECOMMAND
1314409626772WEGO PRECISION MACHINE, INC.
Technical Data | NSN 6650-01-155-3289
Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING
SURFACE TREATMENT PASSIVATE AND OXIDE
THREAD LOCATION EXTERNAL
THREAD SIZE1.188-28
SCREW THREAD SERIES DESIGNATOR UN
THREAD CLASS2A
THREAD PITCH DIAMETERS+1.1590 TO +1.1631 INCHES
THREAD LENGTH0.140 INCHES
THREAD DIRECTION RIGHT-HAND
OVERALL LENGTH0.220 INCHES NOMINAL
OUTSIDE DIAMETER1.250 INCHES NOMINAL
INTERNAL FLANGE THICKNESS0.025 INCHES NOMINAL
APERTURE DIAMETER0.220 INCHES NOMINAL