Part Details | OPTICAL INSTRUMENT LENS
6650-00-621-2930 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: 6650006212930, 1260006212930, 820003, 820003, 820003, 8200003, 6650-00-621-2930, 00-621-2930, 6650006212930, 006212930
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) | 
|---|---|---|---|
| 66 | JAN 01, 1963 | 00-621-2930 | 21884 ( LENS, OPTICAL INSTRUMENT ) | 
REFERENCE DRAWINGS & PICTURES
DOUBLET
					Cross Reference | NSN 6650-00-621-2930
| Part Number | Cage Code | Manufacturer | 
|---|---|---|
| 6650006212930 | A00AM | E.C.A ETABLISSEMENT CENTRALDESAPPROVISIONNEMENTS DES FORCES | 
| 1260006212930 | SCY13 | E.C.A ETABLISSEMENTCENTRALD'APPROVISIONNEMENT DES | 
| 820003 | 34870 | FJW OPTICAL SYSTEMS, INC. | 
| 820003 | 94809 | PLUMMER PRECISION OPTICS CO | 
| 820003 | 22255 | PLX INC.DBA P L X | 
| 8200003 | 19200 | US ARMY ARDEC RDECOM | 
Technical Data | NSN 6650-00-621-2930
| Characteristic | Specifications | 
|---|---|
| MATERIAL | GLASS OPTICAL | 
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE | 
| COMPOUND LENS STYLE | DOUBLET | 
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND DOUBLE CONCAVE | 
| DIAMETER | 0.965 INCHES MINIMUM AND 0.968 INCHES MAXIMUM | 
| AXIAL THICKNESS | 0.380 INCHES NOMINAL AND 0.090 INCHES NOMINAL | 
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.450 INCHES MINIMUM AND 0.490 INCHES MAXIMUM | 
| COMPOUND LENS EDGE THICKNESS | 0.341 INCHES NOMINAL | 
| ELEMENT LEFT SURFACE RADIUS | -1.202 INCHES AND 0.885 INCHES | 
| ELEMENT RIGHT SURFACE RADIUS | -1.202 INCHES AND 8.841 INCHES | 
| EQUIVALENT FOCAL LENGTH | 2.686 INCHES | 
| BACK FOCAL LENGTH | 2.231 INCHES | 
| REFRACTION INDEX | 1.7200 NOMINAL AND 1.5170 NOMINAL | 
| ABBE CONSTANT | B29.300$$B64.500 | 
| FSC APPLICATION DATA | RANGEFINDER M17C | 
