| 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) | 00-171-7899 (001717899) |
| NCB Code | USA (00) |
| Manufacturer | Navair And Navsea Managed |
| MRC | Criteria | Characteristic |
|---|---|---|
| ZZZV | III FSC APPLICATION DATA | RANGEFINDER MK 57 MOD O |
| MATL | MATERIAL | GLASS, OPTICAL, JAN-G-174, TYPE 523-586, GRADE C |
| ABMZ | DIAMETER | 8.510 MILLIMETERS NOMINAL |
| ABNM | THICKNESS | 3.000 MILLIMETERS NOMINAL |
| AJEF | BEVEL DEPTH | 0.700 MILLIMETERS NOMINAL |
| BMMX | REFRACTION INDEX | 1.5230 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 - 1240-00-171-7899, 1240001717899 | ||||
| 1285-00-871-0423 (1285008710423) | 1270-01-094-0527 (1270010940527) | 1220-00-130-9967 (1220001309967) | 1270-00-996-5887 (1270009965887) | |
| 1210-00-155-6077 (1210001556077) | 1285-00-994-1452 (1285009941452) | 1285-00-186-8336 (1285001868336) | 1260-01-046-2840 (1260010462840) | |
| 1290-01-430-5019 (1290014305019) | 1290-01-582-8202 (1290015828202) | 1285-01-167-3822 (1285011673822) | 1240-01-562-2090 (1240015622090) | |
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.
Request for Quote
