NSN 1240-01-172-2121
Part Details | OPTICAL ELEMENT RETAINING RING
1240-01-172-2121 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: 82A5027A1506, 82A5027A1506, 1240-01-172-2121, 01-172-2121, 1240011722121, 011722121
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | FEB 16, 1984 | 01-172-2121 | 22585 ( RING, RETAINING, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-01-172-2121
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 82A5027A1506 | 27777 | L3 TECHNOLOGIES, INC.DBA INSIGHT TECHNOLOGY DIVISION |
| 82A5027A1506 | 01365 | MARINE CORPS LOGISTICS COMMANDTECHNICAL DATA REPOSITORY |
Technical Data | NSN 1240-01-172-2121
| Characteristic | Specifications |
|---|---|
| MATERIAL | ALUMINUM ALLOY A413.0 |
| OVERALL LENGTH | 7.63 MILLIMETERS MINIMUM AND 7.87 MILLIMETERS MAXIMUM |
| OUTSIDE DIAMETER | 31.63 MILLIMETERS MINIMUM AND 31.87 MILLIMETERS MAXIMUM |
| INTERNAL FLANGE THICKNESS | 1.27 MILLIMETERS NOMINAL |
| APERTURE DIAMETER | 12.5 MILLIMETERS MINIMUM AND 12.9 MILLIMETERS MAXIMUM |
| MOUNTING CONFIGURATION | TWO HOLES ON 25.2 MM MINIMUM AND 25.6 MM MAXIMUM CIRCLE,3.0 MM MINIMUM AND 4.0 MM MAXIMUM DIA |