NSN 1240-00-989-4882
Part Details | OPTICAL ELEMENT RETAINING RING
1240-00-989-4882 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: 1240009894882, 8635182, 1240-00-989-4882, 00-989-4882, 1240009894882, 009894882
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | JAN 01, 1962 | 00-989-4882 | 22585 ( RING, RETAINING, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-989-4882
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1240009894882 | A00AM | E.C.A ETABLISSEMENT CENTRALDESAPPROVISIONNEMENTS DES FORCES |
| 8635182 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 1240-00-989-4882
| Characteristic | Specifications |
|---|---|
| MATERIAL | ALUMINUM ALLOY 2024 |
| THREAD LOCATION | INTERNAL |
| THREAD SIZE | 1.562 IN.-32 |
| SCREW THREAD SERIES DESIGNATOR | UNS |
| THREAD CLASS | 2B |
| THREAD LENGTH | 0.312 INCHES |
| THREAD DIRECTION | RIGHT-HAND |
| OVERALL LENGTH | 0.437 INCHES NOMINAL |
| OUTSIDE DIAMETER | 2.937 INCHES NOMINAL |
| INTERNAL FLANGE THICKNESS | 0.312 INCHES NOMINAL |
| APERTURE DIAMETER | 1.948 INCHES NOMINAL |
| FSC APPLICATION DATA | PERISCOPE XM36,INTEGRATED WITH FIRE CONTROL EQUIPMENT |