NSN 1240-01-171-8373
Part Details | OPTICAL INSTRUMENT WINDOW
1240-01-171-8373 A color free item of transparent or translucent material, usually optical glass, having specific light dispersive and refractive properties. This item must have two plane-parallel surfaces and is designed for use in an optical instrument to provide a barrier to foreign matter and/or permit light transmission in or to the optical system.
Alternate Parts: 1446000, 1354000, 13084609, 13084358, 13084358, 13084609, 13084609, 1240-01-171-8373, 01-171-8373, 1240011718373, 011718373
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | FEB 15, 1984 | 01-171-8373 | 10908 ( WINDOW, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-01-171-8373
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1446000 | 54287 | ALPHA OPTICAL SYSTEMS INC |
| 1354000 | 54287 | ALPHA OPTICAL SYSTEMS INC |
| 13084609 | 22669 | II-VI OPTICAL SYSTEMS, INC. |
| 13084358 | 04939 | LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN |
| 13084358 | 58260 | PROGRAM MANAGER ADVANCED ATTACKHELICOPTER BARCOM AMCPM-AAH |
| 13084609 | 58260 | PROGRAM MANAGER ADVANCED ATTACKHELICOPTER BARCOM AMCPM-AAH |
| 13084609 | 81996 | U S ARMY AVIATION AND MISSILECOMMAND |
Technical Data | NSN 1240-01-171-8373
| Characteristic | Specifications |
|---|---|
| REFRACTION INDEX | 1.4570 MINIMUM AND 1.4590 MAXIMUM |
| DISPERSION | 67.3 ANGSTROMS MINIMUM AND 68.3 ANGSTROMS MAXIMUM |
| POLISHED SURFACE | BOTH |
| SURFACE FINISH | POLISHED |
| POLISHED PERIPHERY | NOT PROVIDED |
| WIDTH | 5.455 INCHES MINIMUM AND 5.505 INCHES MAXIMUM |
| LENGTH | 11.275 INCHES MINIMUM AND 11.285 INCHES MAXIMUM |
| THICKNESS | 0.970 INCHES MINIMUM AND 1.007 INCHES MAXIMUM |