NSN 1240-00-026-8107

Part Details | OPTICAL ELEMENT RETAINING RING

1240-00-026-8107 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: 215292PC2, 1240-00-026-8107, 00-026-8107, 1240000268107, 000268107

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12JAN 01, 196300-026-810722585 ( RING, RETAINING, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-026-8107
Part Number Cage Code Manufacturer
215292PC210001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 1240-00-026-8107
Characteristic Specifications
MATERIAL COPPER
THREAD LOCATION INTERNAL
THREAD SIZE5-20
SCREW THREAD SERIES DESIGNATOR UNS
THREAD CLASS3B
THREAD LENGTH0.400 INCHES
THREAD DIRECTION RIGHT-HAND
OVERALL LENGTH0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM
OUTSIDE DIAMETER5.240 INCHES MINIMUM AND 5.260 INCHES MAXIMUM
INTERNAL FLANGE THICKNESS0.140 INCHES NOMINAL
INNER GROOVE WIDTH0.0500 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM
APERTURE DIAMETER5.000 INCHES NOMINAL
GROOVE LOCATION INSIDE FACE OF FLANGE
END ITEM IDENTIFICATIONTELESCOPE MK60