NSN 5855-01-039-2856
Part Details | OPTICAL ELEMENT RETAINING RING
5855-01-039-2856 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: SMD850425, SM-D-850425, SMD850425, SM-D-850425, SMD850425, SM-D-850425, 5855-01-039-2856, 01-039-2856, 5855010392856, 010392856
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 58 | APR 17, 1977 | 01-039-2856 | 22585 ( RING, RETAINING, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 5855-01-039-2856
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| SM-D-850425 | 02004 | COLONIAL MFG CO INC |
| SM-D-850425 | 53549 | STARLIGHT COMPONENTS INC |
| SM-D-850425 | 80063 | US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS |
Technical Data | NSN 5855-01-039-2856
| Characteristic | Specifications |
|---|---|
| MATERIAL | ALUMINUM ALLOY 6061 |
| THREAD LOCATION | INTERNAL |
| THREAD SIZE | 7/40-18 |
| SCREW THREAD SERIES DESIGNATOR | UNS |
| THREAD CLASS | 2B |
| THREAD PITCH DIAMETERS | +3.1389 TO +3.1459 INCHES |
| THREAD LENGTH | 0.480 INCHES |
| THREAD DIRECTION | RIGHT-HAND |
| OVERALL LENGTH | 0.959 INCHES NOMINAL |
| OUTSIDE DIAMETER | 3.270 INCHES NOMINAL |
| INTERNAL FLANGE THICKNESS | 0.049 INCHES NOMINAL |
| APERTURE DIAMETER | 2.670 INCHES NOMINAL |
| MOUNTING CONFIGURATION | 0.086 IN. DIA HOLE 1 |
| FSC APPLICATION DATA | NIGHT VISION EQUIPMENT |