| 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) | 00-531-6365 (005316365) |
| NCB Code | USA (00) |
| Manufacturer | Seiler Instrument And Manufacturing |
| MRC | Criteria | Characteristic |
|---|---|---|
| AJEF | Bevel Depth | 0.005 INCHES MINIMUM AND 0.010 INCHES MAXIMUM |
| BMSP | Bevel Angle In Deg | 42.000 MINIMUM AND 48.000 MAXIMUM |
| BMSG | Polished Surface | BOTH |
| BMSM | Polished Periphery | NOT PROVIDED |
| BMSH | Dispersion | 64.5 ANGSTROMS NOMINAL |
| BMSK | Reflection Reducing Surface | BOTH |
| ABNM | Thickness | 0.082 INCHES MINIMUM AND 0.092 INCHES MAXIMUM |
| MATT | Material | GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 517-645 |
| ABMZ | Diameter | 0.869 INCHES MINIMUM AND 0.874 INCHES MAXIMUM |
| MRC | Decoded Requirement | Clear Text Reply |
| BMMX | Refraction Index | 1.5170 NOMINAL |
| Relevant Components for NSN - 1240-00-531-6365, 1240005316365 | ||||
| 1265-00-614-8088 (1265006148088) | 1240-01-118-9964 (1240011189964) | 1285-00-449-6275 (1285004496275) | 1270-01-119-6523 (1270011196523) | |
| 1290-01-330-1595 (1290013301595) | 1270-00-313-9175 (1270003139175) | 1280-00-868-4875 (1280008684875) | 1290-01-546-6194 (1290015466194) | |
| 1290-01-416-9390 (1290014169390) | 1290-01-069-3391 (1290010693391) | 1270-00-019-7649 (1270000197649) | 1270-00-023-3389 (1270000233389) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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