| Item Name | Bearing Roller Tapered |
| Federal Supply Group (FSG) | Bearings |
| Federal Supply Class (FSC) | 3110 Bearings Antifriction Unmounted |
| National Item Identification Number (NIIN) | 00-253-7881 (002537881) |
| NCB Code | USA (00) |
| Manufacturer | Federal Specifications, Timken Corporation |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| FFB187 | federal specifications | bearing roller tapered | 81348 | RFQ |
| NA558SW552D | timken corporation | bearing roller tapered | 60038 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABMK | OVERALL WIDTH | 3.1250 INCHES MINIMUM AND 3.1350 INCHES MAXIMUM |
| ABXV | BORE DIAMETER | 2.3750 INCHES MINIMUM AND 2.3755 INCHES MAXIMUM |
| ADGA | OVERALL OUTSIDE DIAMETER | 4.8750 INCHES MINIMUM AND 4.8760 INCHES MAXIMUM |
| AGWU | BACKFACE CORNER RADIUS | 0.0600 INCHES NOMINAL |
| AGWV | STANDOUT WIDTH | 0.3125 INCHES NOMINAL |
| AGWW | CONE CORNER RADIUS | 0.1400 INCHES NOMINAL |
| AGWY | CUP WIDTH | 2.5000 INCHES NOMINAL |
| AGYF | RETAINER FABRICATION METHOD | PRESSED |
| CTFZ | STANDARD TOLERANCE DESIGNATION | AFBMA CLASS 2 |
| FEAT | SPECIAL FEATURES | OIL HOLES AND GROOVE IN CUP,4 OIL SLOTS IN EACH CONE,0.0090 IN. MAX BENCH LATERAL ZZZTJTY764 |
| MATT | MATERIAL | STEEL OVERALL |
| STYL | STYLE DESIGNATOR | STRAIGHT BORE,DOUBLE CUP,SINGLE CONES,NON-ADJUSTABLE |
| ZZZT | NONDEFINITIVE SPEC/STD DATA | 764 TYPE |
| Relevant Components for NSN - 3110-00-253-7881, 3110002537881 | ||||
| 3110-01-152-8152 (3110011528152) | 3120-01-185-8740 (3120011858740) | 3120-00-661-4351 (3120006614351) | 3120-00-518-6871 (3120005186871) | |
| 3110-00-168-1471 (3110001681471) | 3110-01-354-4581 (3110013544581) | 3120-01-680-4661 (3120016804661) | 3120-01-518-6652 (3120015186652) | |
| 3120-00-382-2710 (3120003822710) | 3120-00-529-8687 (3120005298687) | 3110-01-143-1798 (3110011431798) | 3110-01-500-2447 (3110015002447) | |
If You’re Ever Looking for NSN parts Or Have an Aircraft On Ground Situation, Don’t forget That We offer Competitive Pricing and Guaranteed On-Time Delivery.
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