| Item Name | Ring Retaining Opti |
| INC Code | 22585 |
| Federal Supply Group (FSG) | Fire Control Equipment |
| Federal Supply Class (FSC) | 1240 Optical Sighting And Ranging Equipment |
| National Item Identification Number (NIIN) | 00-177-0659 (001770659) |
| NCB Code | USA (00) |
| Manufacturer | Navair And Navsea Managed |
| MRC | Criteria | Characteristic |
|---|---|---|
| AJYP | SCREW THREAD SERIES DESIGNATOR | UNS |
| AAJD | THREAD CLASS | 2B |
| AAJF | THREAD DIRECTION | RIGHT-HAND |
| AAVZ | GROOVE DIAMETER | 2.218 INCHES NOMINAL |
| ABET | THREAD LENGTH | 0.171 INCHES |
| ABHP | OVERALL LENGTH | 0.297 INCHES NOMINAL |
| APJC | THREAD LOCATION | INTERNAL |
| ABKV | OUTSIDE DIAMETER | 2.562 INCHES NOMINAL |
| ABUJ | THREAD SIZE | 2.437-32 |
| MATL | MATERIAL | BRASS, WW-T-791, GRADE 2, TYPE A |
| AGAV | III END ITEM IDENTIFICATION | GUN SIGHT MK29 |
| ADWA | INNER GROOVE WIDTH | 0.0930 INCHES NOMINAL |
| BMTL | INTERNAL FLANGE THICKNESS | 0.064 INCHES NOMINAL |
| BMTY | GROOVE LOCATION | INSIDE FACE OF FLANGE |
| SURF | SURFACE TREATMENT | ANY ACCEPTABLE |
| Relevant Components for NSN - 1240-00-177-0659, 1240001770659 | ||||
| 1240-00-382-1631 (1240003821631) | 1240-01-613-3001 (1240016133001) | 1240-01-275-0099 (1240012750099) | 1240-00-989-3555 (1240009893555) | |
| 1240-00-382-4710 (1240003824710) | 1240-01-622-6368 (1240016226368) | 1240-00-003-8406 (1240000038406) | 1240-01-086-5245 (1240010865245) | |
| 1240-01-618-7781 (1240016187781) | 1240-01-309-9289 (1240013099289) | 1240-01-217-2365 (1240012172365) | 1240-00-026-8140 (1240000268140) | |
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