Part Details | OPTICAL ELEMENT RETAINING RING
1240-00-157-9379 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: 481112PC8, 481112PC8, 1240-00-157-9379, 00-157-9379, 1240001579379, 001579379
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | JAN 01, 1963 | 00-157-9379 | 22585 ( RING, RETAINING, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-157-9379
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 481112PC8 | 56232 | LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN |
| 481112PC8 | 10001 | NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT |
Technical Data | NSN 1240-00-157-9379
| Characteristic | Specifications |
|---|---|
| MATERIAL | COPPER ALLOY |
| THREAD LOCATION | INTERNAL |
| THREAD SIZE | 2 7/16-32 |
| SCREW THREAD SERIES DESIGNATOR | UNS |
| THREAD CLASS | 2A |
| THREAD LENGTH | 0.171 INCHES |
| THREAD DIRECTION | RIGHT-HAND |
| OVERALL LENGTH | 0.297 INCHES NOMINAL |
| OUTSIDE DIAMETER | 2.562 INCHES NOMINAL |
| INTERNAL FLANGE THICKNESS | 0.054 INCHES NOMINAL |
| INNER GROOVE WIDTH | 0.093 INCHES NOMINAL |
| GROOVE DIAMETER | 2.218 INCHES NOMINAL |
| APERTURE DIAMETER | 2.125 INCHES NOMINAL |
| GROOVE LOCATION | INSIDE FACE OF FLANGE |
| MOUNTING CONFIGURATION | 0.059-72NF-3 HOLE FOR MOUNTING SCREW |
| END ITEM IDENTIFICATION | GUN SIGHT MK15 |