NSN 1240-01-318-1478
Part Details | OPTICAL ELEMENT RETAINER
1240-01-318-1478 A cylindrical, externally threaded item having a centrally located hole specifically designed to retain by means of either a raised box (shoulder), or counterbore, countersink, or a similar shaped recess, an optical element such as a lens, reticle, cell, and the like, in optical assemblies. It must have drilled holes or slots to facilitate assembly and disassembly. For items which house the optical element(s), and form the internal or central portions of an optical system, see CELL, OPTICAL ELEMENT. Excludes RING, EXTERNALLY THREADED.
Alternate Parts: J81Y00201, J81Y0020-1, J81Y00201, J81Y0020-1, 1240-01-318-1478, 01-318-1478, 1240013181478, 013181478
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | APR 13, 1990 | 01-318-1478 | 22451 ( RETAINER, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
RECESSED
Cross Reference | NSN 1240-01-318-1478
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| J81Y0020-1 | 2M351 | MASTERCRAFT AEROSPACE MANUFACTURING,LLC |
| J81Y0020-1 | 12464 | MCDONNELL DOUGLAS CORPMCDONNELL DOUGLAS ELECTRONIC SYSTEMS |
Technical Data | NSN 1240-01-318-1478
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | RECESSED |
| OVERALL LENGTH | 0.140 INCHES NOMINAL |
| RECESS DIAMETER | 0.980 INCHES NOMINAL |
| THREAD SIZE | 1.250 IN.-24 |
| MATERIAL | STEEL |
| INTERNAL ANNULAR SERRATION | NOT PROVIDED |
| GUIDE DESIGN | THREAD RELIEF |
| SETSCREW NOTCH | NOT PROVIDED |
| END ITEM IDENTIFICATION | F-15,4920-01-242-8325 |