AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Ring Bearing Inner |
| Federal Supply Group (FSG) | Bearings |
| Federal Supply Class (FSC) | 3110 Bearings Antifriction Unmounted |
| National Item Identification Number (NIIN) | 00-278-6951 (002786951) |
| NCB Code | USA (00) |
| Manufacturer | Timken Aerospace Inc, Messinger Bearings Corporation, Zvl Zkl Bearing Corp, American Roller Bearing Co, Fag Bearings Corporation, Regal Beloit America Inc |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| C87780-50 | timken aerospace inc | ring bearing inner | RFQ |
| C87780-50 | messinger bearings corporation | ring bearing inner | RFQ |
| C87780-50 | zvl zkl bearing corp | ring bearing inner | RFQ |
| C87780-50 | american roller bearing co | ring bearing inner | RFQ |
| C87780-50 | fag bearings corporation | ring bearing inner | RFQ |
| C87780-50 | regal beloit america inc | ring bearing inner | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABMK | OVERALL WIDTH | 3.4950 INCHES MINIMUM AND 3.5000 INCHES MAXIMUM |
| ABXV | BORE DIAMETER | 7.8728 INCHES MINIMUM AND 7.8740 INCHES MAXIMUM |
| ADGA | OVERALL OUTSIDE DIAMETER | 9.1227 INCHES MINIMUM AND 9.1239 INCHES MAXIMUM |
| AGYE | SURFACE FINISH | GROUND |
| AGZD | BORE SHAPE | STRAIGHT |
| CRTL | CRITICALITY CODE JUSTIFICATION | FEAT |
| CTFZ | STANDARD TOLERANCE DESIGNATION | AFBMA CLASS 00 |
| FEAT | SPECIAL FEATURES | THE ITEM IS A NON-AVIATION CRITICAL SAFETY ITEM (CSI) WHOSE FAILURE WILL RESULT IN SERIOUS DAMAGE TO EQUIPMENT OR SERIOUS INJURY OR DEATH TO PERSONNEL. |
| MATT | MATERIAL | STEEL OVERALL |
| STYL | STYLE DESIGNATOR | INNER RING,ROLLER,CYLINDRICAL |
| Relevant Components for NSN - 3110-00-278-6951, 3110002786951 | ||||
| 3120-01-114-4519 (3120011144519) | 3120-01-221-5836 (3120012215836) | 3120-99-782-0886 (3120997820886) | 3110-01-104-8172 (3110011048172) | |
| 3110-01-499-4933 (3110014994933) | 3110-00-100-4158 (3110001004158) | 3120-01-497-5823 (3120014975823) | 3110-00-156-8100 (3110001568100) | |
| 3120-01-495-8412 (3120014958412) | 3110-01-586-5540 (3110015865540) | 3110-01-300-2426 (3110013002426) | 3110-00-156-6819 (3110001566819) | |
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