NSN 1240-00-045-4379

Part Details | OPTICAL ELEMENT RETAINING RING

1240-00-045-4379 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: 10547913, 1240-00-045-4379, 00-045-4379, 1240000454379, 000454379

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12MAY 09, 196700-045-437922585 ( RING, RETAINING, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-045-4379
Part Number Cage Code Manufacturer
1054791319200US ARMY ARDEC RDECOM
Technical Data | NSN 1240-00-045-4379
Characteristic Specifications
MATERIAL3$DST0416
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763, CLASS 303, COND A FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-764, TYPE 416, COND A-CANCELED FED SPEC 2ND MATERIAL RESPONSE
THREAD LOCATION INTERNAL
OUTSIDE DIAMETER1.710 INCHES MINIMUM AND 1.720 INCHES MAXIMUM
INTERNAL FLANGE THICKNESS0.3750 INCHES NOMINAL
APERTURE DIAMETER1.5625 INCHES NOMINAL