NSN 6650-01-158-1871
Part Details | OPTICAL ELEMENT RETAINING RING
6650-01-158-1871 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: 13144146, 13144146, 6650-01-158-1871, 01-158-1871, 6650011581871, 011581871
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | JUL 18, 1983 | 01-158-1871 | 22585 ( RING, RETAINING, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6650-01-158-1871
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 13144146 | 18876 | U S ARMY AVIATION AND MISSILECOMMAND |
| 13144146 | 26772 | WEGO PRECISION MACHINE, INC. |
Technical Data | NSN 6650-01-158-1871
| Characteristic | Specifications |
|---|---|
| MATERIAL | ALUMINUM ALLOY 6061 |
| THREAD LOCATION | INTERNAL |
| THREAD SIZE | 0.375-28 |
| SCREW THREAD SERIES DESIGNATOR | UNS |
| THREAD CLASS | 2B |
| THREAD PITCH DIAMETERS | +0.3518 TO +0.3564 INCHES |
| THREAD LENGTH | 0.040 INCHES |
| THREAD DIRECTION | RIGHT-HAND |
| OVERALL LENGTH | 0.190 INCHES NOMINAL |
| OUTSIDE DIAMETER | 0.470 INCHES NOMINAL |
| INTERNAL FLANGE THICKNESS | 0.040 INCHES NOMINAL |
| APERTURE DIAMETER | 0.058 INCHES NOMINAL |
