| 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 | ||||
| 1560-01-260-5355 (1560012605355) | 1560-01-453-9395 (1560014539395) | 1560-00-080-7937 (1560000807937) | 1560-00-990-3067 (1560009903067) | |
| 1560-00-761-7987 (1560007617987) | 1560-01-627-2350 (1560016272350) | 1560-01-315-4339 (1560013154339) | 1560-01-219-9288 (1560012199288) | |
| 1560-00-788-4467 (1560007884467) | 1560-00-630-4216 (1560006304216) | 1560-01-084-6823 (1560010846823) | 1560-01-594-4709 (1560015944709) | |
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