NSN 6650-00-902-9736
Part Details | OPTICAL INSTRUMENT LENS
6650-00-902-9736 An unmounted, transparent, color free lens which may be treated with a low reflection coating to increase light transmission. Includes single and compound elements. For items having two plane parallel surfaces, see WINDOW, OPTICAL INSTRUMENT. Excludes RETICLE, OPTICAL INSTRUMENT.
Alternate Parts: 8579804, 6650-00-902-9736, 00-902-9736, 6650009029736, 009029736
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
66 | JAN 01, 1960 | 00-902-9736 | 21884 ( LENS, OPTICAL INSTRUMENT ) |
REFERENCE DRAWINGS & PICTURES
PLANO-CONCAVE

PLANO-CONCAVE

Cross Reference | NSN 6650-00-902-9736
Part Number | Cage Code | Manufacturer |
---|---|---|
8579804 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 6650-00-902-9736
Characteristic | Specifications |
---|---|
MATERIAL | GLASS OPTICAL |
MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
SINGLE LENS STYLE | PLANO-CONCAVE |
INDIVIDUAL LENS STYLE | PLANO-CONCAVE |
DIAMETER | 1.900 INCHES NOMINAL |
AXIAL THICKNESS | 0.100 INCHES NOMINAL |
ELEMENT LEFT SURFACE RADIUS | 1.353 INCHES |
ELEMENT RIGHT SURFACE RADIUS | 1.353 INCHES |
EQUIVALENT FOCAL LENGTH | 3.995 INCHES |
BACK FOCAL LENGTH | 2.059 INCHES |
FRONT FOCAL LENGTH | 1.959 INCHES |
REFRACTION INDEX | 1.6570 NOMINAL |
ABBE CONSTANT | 2.059 |
FSC APPLICATION DATA | 1. PERISCOPE,TANK,XM48 |