| Item Name | Optical Flat |
| Federal Supply Group (FSG) | Measuring Tools |
| Federal Supply Class (FSC) | 5210 measuring Tools Craftsmens |
| National Item Identification Number (NIIN) | 00-682-1618 (006821618) |
| NCB Code | USA (00) |
| Manufacturer | Federal Commercial Item Description, Federal Specifications, Military Specifications |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| A-A-58051 TYPE II CLASS 2 | federal commercial item description | optical flat | 58536 | RFQ |
| GG-O-635STY2CL2 | federal specifications | optical flat | 81348 | RFQ |
| MIL026901CLASS1SIZE12 | military specifications | optical flat | 81349 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABMZ | DIAMETER | 6.000 INCHES NOMINAL |
| ABNM | THICKNESS | 1.000 INCHES NOMINAL |
| ALFK | CASE | PROVIDED |
| APGF | DESIGN TYPE | MASTER DOUBLE |
| BSFY | WORKING SURFACE FLATNESS ACCURACY | 0.00000200 INCHES NOMINAL |
| MATT | MATERIAL | QUARTZ |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | 1 CLASS AND 12 SIZE |
| Components Related to NSN - 5210-00-682-1618, 5210006821618 | ||||
| 5220-01-383-9901 (5220013839901) | 5210-00-227-1688 (5210002271688) | 5210-01-136-2581 (5210011362581) | 5220-00-352-8534 (5220003528534) | |
| 5220-00-391-0307 (5220003910307) | 5210-01-373-4400 (5210013734400) | 5220-00-994-6072 (5220009946072) | 5210-01-479-5746 (5210014795746) | |
| 5220-01-676-9093 (5220016769093) | 5210-01-467-1908 (5210014671908) | 5210-00-221-1930 (5210002211930) | 5220-00-344-1631 (5220003441631) | |
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