NSN 1240-01-077-2885
Part Details | OPTICAL ELEMENT RETAINING RING
1240-01-077-2885 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: 424731, 42473-1, 11780079, 1240-01-077-2885, 01-077-2885, 1240010772885, 010772885
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | MAY 20, 1979 | 01-077-2885 | 22585 ( RING, RETAINING, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-01-077-2885
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 42473-1 | 09344 | ROCKWELL COLLINS, INC.DBA RC DISPLAYS SYSTEMS |
| 11780079 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 1240-01-077-2885
| Characteristic | Specifications |
|---|---|
| THREAD LOCATION | EXTERNAL |
| THREAD SIZE | 3/8-32 |
| SCREW THREAD SERIES DESIGNATOR | UNS |
| THREAD CLASS | 2A |
| THREAD PITCH DIAMETERS | +3.7235 TO +3.7283 INCHES |
| THREAD LENGTH | 0.125 INCHES |
| THREAD DIRECTION | RIGHT-HAND |
| OUTSIDE DIAMETER | 3.740 INCHES MINIMUM AND 3.760 INCHES MAXIMUM |
| INTERNAL FLANGE THICKNESS | 0.362 INCHES NOMINAL |
| APERTURE DIAMETER | 3.383 INCHES MINIMUM AND 3.393 INCHES MAXIMUM |
| MOUNTING CONFIGURATION | 0.081 IN.DIA.12 HOLES EQUALLY SPACED |