| 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) | 00-768-8772 (007688772) |
| NCB Code | USA (00) |
| Manufacturer | Starwin Industries Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABVL | Aperture Diameter | 1.197 INCHES MINIMUM AND 1.203 INCHES MAXIMUM |
| ABKV | Outside Diameter | 1.525 INCHES MINIMUM AND 1.535 INCHES MAXIMUM |
| ABHP | Overall Length | 0.300 INCHES NOMINAL |
| AAJD | Thread Class | 2A |
| BMTY | Groove Location | ADJACENT TO INTERNAL FLANGE |
| ABUJ | Thread Size | 1.430 IN.-48 |
| BMTL | Internal Flange Thickness | 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM |
| AAJF | Thread Direction | RIGHT-HAND |
| AJYP | Screw Thread Series Designator | UNS |
| SFTT | Surface Treatment | ANODIZED,MIL-A-8625,TYPE 1,CLASS 2,BLACK |
| ALGC | Mounting Configuration | INTERNAL THREAD |
| APJC | Thread Location | INTERNAL |
| ZZZV | Fsc Application Data | PERISCOPE,TANK |
| AAVZ | Groove Diameter | 1.435 INCHES MINIMUM AND 1.445 INCHES MAXIMUM |
| FEAT | Special Features | CHAMFER0.019 IN BY 30 DEG ON ID QF FLANGE END. ONE SLOT 0.063 IN WIDE,0.070 IN DEEP BY 45 DEG ON FACE OF FLANGE END |
| MRC | Decoded Requirement | Clear Text Reply |
| ABET | Thread Length | 0.187 INCHES |
| MATT | Material | ALUMINUM ALLOY,QQ-A-225/3,ALLOY 2011,T3 |
| ADWA | Inner Groove Width | 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM |
| Components Related to NSN - 1240-00-768-8772, 1240007688772 | ||||
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| 1280-00-717-8677 (1280007178677) | 1290-00-983-0864 (1290009830864) | 1270-00-333-1716 (1270003331716) | 1240-00-025-0208 (1240000250208) | |
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