| Item Name | Ring Retaining Opti |
| Federal Supply Group (FSG) | Instruments and Laboratory Equipment |
| Federal Supply Class (FSC) | 6650 Optical Instruments Test Equipment Components And Accessories |
| National Item Identification Number (NIIN) | 01-155-3290 (011553290) |
| NCB Code | USA (01) |
| Manufacturer | Abston Machine Shop Inc, Arch Gear Works Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| MATT | Material | STEEL CORROSION RESISTING |
| ABVL | Aperture Diameter | 0.612 INCHES NOMINAL |
| BMTL | Internal Flange Thickness | 1.900 INCHES NOMINAL |
| ABKV | Outside Diameter | 2.245 INCHES NOMINAL |
| ABHP | Overall Length | 0.562 INCHES NOMINAL |
| MRC | Decoded Requirement | Clear Text Reply |
| SFTT | Surface Treatment | PASSIVATE AND OXIDE |
| Components Related to NSN - 6650-01-155-3290, 6650011553290 | ||||
| 6685-01-399-7885 (6685013997885) | 6650-01-354-5592 (6650013545592) | 6625-01-186-8156 (6625011868156) | 6635-01-467-8365 (6635014678365) | |
| 6650-01-227-8426 (6650012278426) | 6660-00-072-0222 (6660000720222) | 6625-01-569-1256 (6625015691256) | 6645-00-607-3198 (6645006073198) | |
| 6665-00-893-4269 (6665008934269) | 6685-00-187-8261 (6685001878261) | 6680-01-280-8849 (6680012808849) | 6640-00-894-6259 (6640008946259) | |
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