NSN 1240-01-251-4848
Part Details | INTERFERENCE LIGHT FILTER
1240-01-251-4848 A light transmitting item consisting of a transparent, flat glass body having two plane-parallel surfaces, either with only nonabsorbing dielectric coatings or absorbing and nonabsorbing coatings of a thickness nearly equivalent to the wavelength of the transmitted light. Interference begins at the thin bordering surfaces of the coatings, the penetrating light waves being superimposed on the reflected light waves. The item can be installed in various optical insturments, to serve as an eye protecting device.
Alternate Parts: 9377159, 1240-01-251-4848, 01-251-4848, 1240012514848, 012514848
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | MAR 19, 1987 | 01-251-4848 | 33094 ( FILTER, LIGHT, INTERFERENCE ) |
REFERENCE DRAWINGS & PICTURES
FLAT
Cross Reference | NSN 1240-01-251-4848
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 9377159 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 1240-01-251-4848
| Characteristic | Specifications |
|---|---|
| MATERIAL | GLASS |
| SURFACE MATERIAL | PLASTIC FILM |
| SURFACE PARALLELISM | 20.0 SECONDS |
| STYLE DESIGNATOR | 4 FLAT |
| OVERALL DIAMETER | 3.120 INCHES NOMINAL |
| OVERALL THICKNESS | 0.385 INCHES NOMINAL |
| END ITEM IDENTIFICATION | M1 AND M1A1 TANK |