NSN 1240-01-171-8377
Part Details | OPTICAL ELEMENT RETAINING RING
1240-01-171-8377 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: 13075287, 13075287, 1240-01-171-8377, 01-171-8377, 1240011718377, 011718377
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | FEB 15, 1984 | 01-171-8377 | 22585 ( RING, RETAINING, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-01-171-8377
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 13075287 | 04939 | LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN |
| 13075287 | 58260 | PROGRAM MANAGER ADVANCED ATTACKHELICOPTER BARCOM AMCPM-AAH |
Technical Data | NSN 1240-01-171-8377
| Characteristic | Specifications |
|---|---|
| MATERIAL | ALUMINUM ALLOY |
| THREAD LOCATION | INTERNAL |
| THREAD SIZE | 4 3/4-32 |
| SCREW THREAD SERIES DESIGNATOR | UNS |
| THREAD CLASS | 2B |
| THREAD PITCH DIAMETERS | +4.7297 TO +4.7358 INCHES |
| THREAD LENGTH | 0.680 INCHES |
| THREAD DIRECTION | RIGHT-HAND |
| OVERALL LENGTH | 1.250 INCHES NOMINAL |
| OUTSIDE DIAMETER | 5.020 INCHES NOMINAL |
| INTERNAL FLANGE THICKNESS | 0.543 INCHES NOMINAL |
| INNER GROOVE WIDTH | 0.050 INCHES NOMINAL |
| GROOVE DIAMETER | 4.820 INCHES NOMINAL |
| APERTURE DIAMETER | 4.277 INCHES NOMINAL |
| GROOVE LOCATION | INSIDE END OF THREAD |