Part Number
Part Number:
NSN:
NIIN:
Item Name:
LENS , OPTICAL INSTRUMENT
Definition:
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.
CAGE Information
| Code | Company |
|---|---|
| 19200 | U S ARMY ARMAMENT RESEARCH & DEVELOP |
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| MATL | MATERIAL | GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 649-338 AND GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 541-599 |
| MATL | MATERIAL | GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 649-338 AND GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 541-599 |
| BMMS | EQUIVALENT FOCAL LENGTH | 2.079 INCHES |
| BMMN | COMPOUND LENS OVERALL AXIAL THICKNESS | 0.595 INCHES MINIMUM AND 0.619 INCHES MAXIMUM |
| CTKW | ELEMENT LEFT SURFACE RADIUS | 2.270 INCHES |
| BMMX | REFRACTION INDEX | 1.6490 NOMINAL AND 1.5410 NOMINAL |
| ZZZV | FSC APPLICATION DATA | PERISCOPE |
| BMMZ | ABBE CONSTANT | 33.800 AND 59.900 |
| CTKX | ELEMENT RIGHT SURFACE RADIUS | 0.828 INCHES |
| FEAT | SPECIAL FEATURES | FRONT AND BACK SURFACES COATED WITH MAGNESIUM FLUORIDE |
| BMLY | AXIAL THICKNESS | 0.113 INCHES MAXIMUM AND 0.101 INCHES MINIMUM AND 0.494 INCHES MINIMUM AND 0.506 INCHES MAXIMUM |
| BMSD | INDIVIDUAL LENS STYLE | MENISCUS DIVERGING AND DOUBLE CONVEX |
| ABMZ | DIAMETER | 1.236 INCHES MINIMUM AND 1.240 INCHES MAXIMUM |
| BMMT | BACK FOCAL LENGTH | 1.934 INCHES |
| BMSC | COMPOUND LENS STYLE | DOUBLET |