NSN 1240-00-344-7639
Part Details | OPTICAL ELEMENT RETAINING RING
1240-00-344-7639 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: 1040234, 73655, 1240-00-344-7639, 00-344-7639, 1240003447639, 003447639
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | JAN 01, 1963 | 00-344-7639 | 22585 ( RING, RETAINING, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-344-7639
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1040234 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
| 73655 | 21587 | OPTICAL TECHNOLOGY DEVICES INC |
Technical Data | NSN 1240-00-344-7639
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL |
| THREAD LOCATION | EXTERNAL |
| THREAD SIZE | 17/32-32 |
| SCREW THREAD SERIES DESIGNATOR | UNS |
| THREAD CLASS | 3A |
| THREAD PITCH DIAMETERS | +0.6747 TO +0.6950 INCHES |
| THREAD LENGTH | 0.094 INCHES |
| THREAD DIRECTION | RIGHT-HAND |
| OVERALL LENGTH | 0.125 INCHES NOMINAL |
| OUTSIDE DIAMETER | 0.695 INCHES NOMINAL |
| INTERNAL FLANGE THICKNESS | 0.031 INCHES NOMINAL |
| APERTURE DIAMETER | 0.548 INCHES NOMINAL |
