| 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) | 00-905-4476 (009054476) |
| NCB Code | USA (00) |
| Manufacturer | Grayco Optical Corp, Laminated Materials Corporation |
| MRC | Criteria | Characteristic |
|---|---|---|
| SR-5 | DESIGN CONTROL REFERENCE | 10527977 |
| SR-5 | MANUFACTURERS CODE | 19200 |
| SR-5 | THE MANUFACTURERS DATA | |
| ZZZV | III FSC APPLICATION DATA | TELESCOPE MOUNT |
| MATL | MATERIAL | GLASS, DD-G-451, TYPE 1 |
| ABMZ | DIAMETER | 59.720 MILLIMETERS NOMINAL |
| ABNM | THICKNESS | 6.330 MILLIMETERS NOMINAL |
| AJEF | BEVEL DEPTH | 0.508 MILLIMETERS NOMINAL |
| BMSG | POLISHED SURFACE | BOTH |
| BMSK | REFLECTION REDUCING SURFACE | BOTH |
| BMSM | POLISHED PERIPHERY | NOT PROVIDED |
| BMSP | BEVEL ANGLE IN DEG | 45.000 NOMINAL |
| Components Related to NSN - 1240-00-905-4476, 1240009054476 | ||||
| 1210-00-607-0920 (1210006070920) | 1260-00-152-4886 (1260001524886) | 1270-00-011-0950 (1270000110950) | 1285-00-421-3219 (1285004213219) | |
| 1285-01-029-1046 (1285010291046) | 1270-01-063-5567 (1270010635567) | 1240-01-551-5763 (1240015515763) | 1260-00-854-9908 (1260008549908) | |
| 1210-00-142-6120 (1210001426120) | 1285-00-342-4785 (1285003424785) | 1285-01-261-5536 (1285012615536) | 1270-01-049-8746 (1270010498746) | |
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