| Item Name | Poppet Gearbox |
| Federal Supply Group (FSG) | Aircraft and Airframe Structural Components |
| Federal Supply Class (FSC) | 1560 Airframe Structural Components |
| National Item Identification Number (NIIN) | 00-887-3391 (008873391) |
| NCB Code | USA (00) |
| Manufacturer | Northrop Grumman Systems Corporation, Northrop Grumman Technical Services Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | TSTEEL,MIL-S-7420,0.390 IN. MIN,0.395 MAX DIA,0.188 IN. DIACOUNTERBORE 0.235 IN. DEEP 1 END,0.185 IN. DIA COUNTERBORE 0.230 IN. MIN,0.240 MAX DEEP OPPOSITE END,0.089 IN. DIA HOLE DRILLED THRU TO COUNTERBORE4 HOLES EQUALLY SPACED |
| CRTL | CRITICALITY CODE JUSTIFICATION | FEAT |
| FEAT | SPECIAL FEATURES | THIS ITEM HAS BEEN DETERMINED TO BE A CRITICAL APPLICATION ITEM. IN-FLIGHT FAILURE OF THIS ITEM WOULD CREATE A HAZARDOUS CONDITION |
| Relevant Components for NSN - 1560-00-887-3391, 1560008873391 | ||||
| 1560-01-141-9838 (1560011419838) | 1560-00-588-2363 (1560005882363) | 1560-01-252-8219 (1560012528219) | 1560-01-388-6401 (1560013886401) | |
| 1560-01-008-7294 (1560010087294) | 1560-00-366-9982 (1560003669982) | 1560-00-536-7361 (1560005367361) | 1560-01-027-6767 (1560010276767) | |
| 1560-01-287-5477 (1560012875477) | 1560-01-605-0677 (1560016050677) | 1560-01-237-9622 (1560012379622) | 1560-01-533-6724 (1560015336724) | |
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