| Item Name | Retainer Optical El |
| Federal Supply Group (FSG) | Fire Control Equipment |
| Federal Supply Class (FSC) | 1240 Optical Sighting And Ranging Equipment |
| National Item Identification Number (NIIN) | 00-155-3343 (001553343) |
| NCB Code | USA (00) |
| Manufacturer | Alliant Techsystems Inc, Navair And Navsea Managed |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKT | Hole Or Slot Quantity | 2 |
| ABHP | Overall Length | 0.200 INCHES NOMINAL |
| ABMH | Recess Depth | 0.150 INCHES NOMINAL |
| BMTS | Internal Annular Serration | NOT PROVIDED |
| MATT | Material | COPPER ALLOY |
| AAUB | Hole Diameter | 0.188 INCHES NOMINAL |
| ABUJ | Thread Size | 0.438 IN.-20 |
| ABGL | Width | 0.060 INCHES NOMINAL |
| MRC | Decoded Requirement | Clear Text Reply |
| BMTR | Guide Location | EDGE OPPOSITE DRIVE EDGE |
| BMTT | Setscrew Notch | NOT PROVIDED |
| BMTN | Drive Facility Angular Spacing In Deg | 180 |
| BMTQ | Guide Design | THREAD RELIEF |
| AEJZ | Depth | 0.050 INCHES NOMINAL |
| BPNC | Hole Chamfer Angle In Deg | 0 |
| BPND | Hole Chamfer Diameter | 0.188 INCHES NOMINAL |
| AKCV | Drive Type | SLOTTED |
| ABME | Recess Angle In Deg | 30 |
| STYL | Style Designator | RECESSED |
| AGAV | End Item Identification | TELESCOPE MK79 |
| Relevant Components for NSN - 1240-00-155-3343, 1240001553343 | ||||
| 1210-00-157-9549 (1210001579549) | 1260-01-238-4410 (1260012384410) | 1260-00-130-6758 (1260001306758) | 1210-00-210-3969 (1210002103969) | |
| 1240-01-581-6246 (1240015816246) | 1210-00-609-5408 (1210006095408) | 1220-00-987-7219 (1220009877219) | 1280-00-320-0136 (1280003200136) | |
| 1270-00-798-2394 (1270007982394) | 1280-01-187-2137 (1280011872137) | 1270-00-867-0718 (1270008670718) | 1270-00-992-3701 (1270009923701) | |
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