Part Details | OPTICAL ELEMENT RETAINING RING
1240-00-159-0537 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: 231650, 655045, 1240-00-159-0537, 00-159-0537, 1240001590537, 001590537
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | JAN 01, 1963 | 00-159-0537 | 22585 ( RING, RETAINING, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-159-0537
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 231650 | 56232 | LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN |
| 655045 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 1240-00-159-0537
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL CORROSION RESISTING |
| OVERALL LENGTH | 0.656 INCHES NOMINAL |
| OUTSIDE DIAMETER | 2.500 INCHES NOMINAL |
| INTERNAL FLANGE THICKNESS | 0.125 INCHES NOMINAL |
| INNER GROOVE WIDTH | 0.0235 INCHES NOMINAL |
| GROOVE DIAMETER | 2.251 INCHES NOMINAL |
| APERTURE DIAMETER | 2.016 INCHES NOMINAL |
| GROOVE LOCATION | INSIDE FACE OF FLANGE |
| END ITEM IDENTIFICATION | GUN SIGHT MK29 |