| Item Name | Window Optical Inst |
| INC Code | 10908 |
| Federal Supply Group (FSG) | Fire Control Equipment |
| Federal Supply Class (FSC) | 1240 Optical Sighting And Ranging Equipment |
| National Item Identification Number (NIIN) | 00-171-4166 (001714166) |
| NCB Code | USA (00) |
| Manufacturer | Navair And Navsea Managed, Selectron Intl Optronics Llc |
| MRC | Criteria | Characteristic |
|---|---|---|
| MRC | Decoded Requirement | Clear Text Reply |
| AJEF | Bevel Depth | 1.000 INCHES NOMINAL |
| BMSG | Polished Surface | BOTH |
| BMSP | Bevel Angle In Deg | 45.000 NOMINAL |
| BMSK | Reflection Reducing Surface | BOTH |
| BMSM | Polished Periphery | NOT PROVIDED |
| ABNM | Thickness | 5.000 MILLIMETERS NOMINAL |
| ABMZ | Diameter | 41.000 MILLIMETERS NOMINAL |
| ZZZV | Fsc Application Data | RANGEFINDER MK 51,MOD 4 |
| BMMX | Refraction Index | 1.5165 NOMINAL |
| MATT | Material | GLASS, OPTICAL, JAN-G-174, TYPE 517-645, GRADE C |
| Relevant Components for NSN - 1240-00-171-4166, 1240001714166 | ||||
| 1240-00-382-1631 (1240003821631) | 1240-01-613-3001 (1240016133001) | 1240-01-275-0099 (1240012750099) | 1240-00-989-3555 (1240009893555) | |
| 1240-00-382-4710 (1240003824710) | 1240-01-622-6368 (1240016226368) | 1240-00-003-8406 (1240000038406) | 1240-01-086-5245 (1240010865245) | |
| 1240-01-618-7781 (1240016187781) | 1240-01-309-9289 (1240013099289) | 1240-01-217-2365 (1240012172365) | 1240-00-026-8140 (1240000268140) | |
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AS9120B and ISO 9001:2015 |
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FAA AC 0056B Accredited |
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AS 6081:2012 Certification |
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ESD S20.20-2014 Certification |
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