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National Stock Number:
6650-01-202-0596
Federal Supply Class:
6650
National Item Identification Number:
012020596
Description:
LENS,OPTICAL INSTRUMENT
Detail:
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.
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Manufacturer Information:
| SM-D-805012 | 80063 | US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR |
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Techincal Specification:
| AXIAL THICKNESS | 0.3269 INCHES MINIMUM AND 0.3369 INCHES MAXIMUM | | BACK FOCAL LENGTH | 4.385 INCHES | | DIAMETER | 2.498 INCHES MINIMUM AND 2.500 INCHES MAXIMUM | | EQUIVALENT FOCAL LENGTH | 4.728 INCHES | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174,GRADE A MIL SPEC 1ST MATERIAL RESPONSE AND MIL-G-174,GRADE B MIL SPEC 2ND MATERIAL RESPONSE | | MATERIAL | GLASS OPTICAL | | SINGLE LENS STYLE | MENISCUS CONVERGING | | SPECIAL FEATURES | LENS NO. 6,BIOCULAR EYEPIECE; MATL: OPTICAL GLASS (LAFN2) PER MIL-G-174,GRADE A/B,STAIN 4,FINE ANNEAL,TYPE 744-448 (802199-43); R1,1.955 RADIUS OF LENS OUTSIDE (LEFT) SURFACE; R2,4.0645 RADIUS OF LENS INSIDE (RIGHT) SURFACE; 0.180 DIST BETWEEN BASE AND INSIDE AXIS; USED IN BIOCULAR ASSY ON COMM AND GUN DISP |
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