| Item Name | Ring Retaining Opti |
| Federal Supply Group (FSG) | Fire Control Equipment |
| Federal Supply Class (FSC) | 1240 Optical Sighting And Ranging Equipment |
| National Item Identification Number (NIIN) | 01-237-0009 (012370009) |
| NCB Code | USA (01) |
| Manufacturer | Program Manager Advanced Attack |
| MRC | Criteria | Characteristic |
|---|---|---|
| AJYP | SCREW THREAD SERIES DESIGNATOR | UNS |
| AAJD | THREAD CLASS | 2B |
| AAJE | THREAD PITCH DIAMETERS | 1.1713 TO 1.1759 INCHES |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAVZ | GROOVE DIAMETER | 1.196 INCHES NOMINAL |
| ABET | THREAD LENGTH | 0.125 INCHES |
| ABHP | OVERALL LENGTH | 0.185 INCHES MINIMUM AND 0.195 INCHES MAXIMUM |
| APJC | THREAD LOCATION | INTERNAL |
| ABKV | OUTSIDE DIAMETER | 1.390 INCHES MINIMUM AND 1.410 INCHES MAXIMUM |
| ABUJ | THREAD SIZE | 1 3/16-40 |
| MATL | MATERIAL | ALUMINUM ALLOY, QQ-A-200/8, 6061, T6 |
| ADWA | INNER GROOVE WIDTH | 0.020 INCHES MINIMUM AND 0.030 INCHES MAXIMUM |
| BMTL | INTERNAL FLANGE THICKNESS | 0.0271 INCHES NOMINAL |
| BMTY | GROOVE LOCATION | INSIDE END OF THREAD |
| SURF | SURFACE TREATMENT | ANODIZED, MIL-A-8625, TYPE 2, CLASS 2 |
| Components Related to NSN - 1240-01-237-0009, 1240012370009 | ||||
| 1290-00-671-3044 (1290006713044) | 1210-00-157-9234 (1210001579234) | 1270-00-573-4730 (1270005734730) | 1240-01-063-1588 (1240010631588) | |
| 1220-00-381-6946 (1220003816946) | 1260-00-104-7254 (1260001047254) | 1270-00-131-0446 (1270001310446) | 1270-00-215-1518 (1270002151518) | |
| 1220-00-513-7264 (1220005137264) | 1285-00-895-6950 (1285008956950) | 1285-00-760-9273 (1285007609273) | 1290-00-937-0191 (1290009370191) | |
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