| Item Name | Window Optical Inst |
| Federal Supply Group (FSG) | Fire Control Equipment |
| Federal Supply Class (FSC) | 1240 Optical Sighting And Ranging Equipment |
| National Item Identification Number (NIIN) | 00-210-4384 (002104384) |
| NCB Code | USA (00) |
| Manufacturer | Navair And Navsea Managed, Bausch And Lomb Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ZZZV | III FSC APPLICATION DATA | OPTICAL SIGHTING AND RANGING EQUIPMENT |
| MATL | MATERIAL | GLASS, OPTICAL, JAN-G-174, GRADE B |
| ABMZ | DIAMETER | 46.6 MILLIMETERS MINIMUM AND 47.0 MILLIMETERS MAXIMUM |
| AGYE | SURFACE FINISH | POLISHED |
| ABNM | THICKNESS | 7.6 MILLIMETERS MINIMUM AND 8.0 MILLIMETERS MAXIMUM |
| BMMX | REFRACTION INDEX | 1.5170 NOMINAL |
| BMSG | POLISHED SURFACE | BOTH |
| BMSH | DISPERSION | 64.5 ANGSTROMS NOMINAL |
| BMSK | REFLECTION REDUCING SURFACE | BOTH |
| BMSM | POLISHED PERIPHERY | NOT PROVIDED |
| Components Related to NSN - 1240-00-210-4384, 1240002104384 | ||||
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| 1220-00-142-6041 (1220001426041) | 1220-00-791-5656 (1220007915656) | 1270-00-917-1517 (1270009171517) | 1290-00-870-1440 (1290008701440) | |
| 1240-01-538-6884 (1240015386884) | 1270-00-093-4152 (1270000934152) | 1290-00-580-4441 (1290005804441) | 1220-00-152-3622 (1220001523622) | |
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