NSN 1240-00-328-5606

Part Details | OPTICAL ELEMENT RETAINING RING

1240-00-328-5606 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: 10558952, 1240-00-328-5606, 00-328-5606, 1240003285606, 003285606

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12DEC 03, 197300-328-560622585 ( RING, RETAINING, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-328-5606
Part Number Cage Code Manufacturer
1055895219200US ARMY ARDEC RDECOM
Technical Data | NSN 1240-00-328-5606
Characteristic Specifications
MATERIAL4$DAL6061
MATERIAL DOCUMENT AND CLASSIFICATIONAWW-T-700 TO 3, T3$AWW-T-700 TO 6, T6$AQQ-A-200 TO 3, T4$AQQ-A-200 TO 8, 6061, T6$AQQ-A-225 TO 6, T4$AQQ-A-225 TO 8, ALLOY 6061, T6$AQQ-A-250 TO 4, T4$AQQ-A-250 TO 11, T6 1ST MATERIAL RESPONSE
OUTSIDE DIAMETER3.250 INCHES NOMINAL
INTERNAL FLANGE THICKNESS0.310 INCHES NOMINAL
INNER GROOVE WIDTH0.140 INCHES NOMINAL
GROOVE DIAMETER3.130 INCHES NOMINAL
APERTURE DIAMETER2.900 INCHES NOMINAL
GROOVE LOCATION ADJACENT TO INTERNAL FLANGE
MOUNTING CONFIGURATION3 THREADED HOLES EQUALLY SPACED 120 DEG APART AROUND OUTSIDE DIA; 0.138-32UNC-2B
FSC APPLICATION DATACOLLIMATOR