| 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) | 00-171-4172 (001714172) |
| NCB Code | USA (00) |
| Manufacturer | Navair And Navsea Managed |
| MRC | Criteria | Characteristic |
|---|---|---|
| FEAT | SPECIAL FEATURES | 19.00 MM (0.7480 IN.) RADIUS,4 CORNERS |
| ZZZV | III FSC APPLICATION DATA | TELESCOPE MK60,MODS 0,1 |
| ABRY | LENGTH | 284.600 MILLIMETERS NOMINAL |
| MATL | MATERIAL | GLASS, OPTICAL, JAN-G-174, TYPE 523-586 |
| ABMZ | DIAMETER | 113.600 MILLIMETERS NOMINAL |
| ABNM | THICKNESS | 11.300 MILLIMETERS NOMINAL |
| BMMX | REFRACTION INDEX | 1.5230 NOMINAL |
| BMSG | POLISHED SURFACE | BOTH |
| BMSK | REFLECTION REDUCING SURFACE | BOTH |
| BMSM | POLISHED PERIPHERY | NOT PROVIDED |
| Components Related to NSN - 1240-00-171-4172, 1240001714172 | ||||
| 1270-00-673-1409 (1270006731409) | 1270-01-319-8809 (1270013198809) | 1270-00-614-5972 (1270006145972) | 1280-00-228-5630 (1280002285630) | |
| 1210-00-176-2013 (1210001762013) | 1270-00-329-9259 (1270003299259) | 1280-00-830-6986 (1280008306986) | 1270-00-779-1598 (1270007791598) | |
| 1270-01-463-3531 (1270014633531) | 1240-01-072-0374 (1240010720374) | 1270-00-304-6827 (1270003046827) | 1220-00-693-5286 (1220006935286) | |
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