The Bearing,roller,tapered, cataloged under National Stock Number 3110-00-227-3541, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Westinghouse Electric Corp. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-227-3541 |
| Primary Part Number | WW220-856 |
| Item Name | Bearing,roller,tapered |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Cup Width | 1.5000 INCHES NOMINAL IN |
| Style Designator | STRAIGHT BORE, NORMAL ANGLE |
| Overall Outside Diameter | 9.7500 INCHES NOMINAL IN |
| Backface Corner Radius | 0.1250 INCHES NOMINAL IN |
| Cone Corner Radius | 0.1400 INCHES NOMINAL IN |
| Standout Width | 0.3750 INCHES NOMINAL IN |
| Cone Width | 1.8750 INCHES NOMINAL IN |
| Standard Tolerance Designation | AFBMA CLASS 2 |
| Bore Diameter | 6.8750 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| WW220-856 | Schindler Elevator Corporation (USA) |
| 67787-67720 | The Timken Corporation (USA) |
| WW220-856 PRIMARY | Westinghouse Electric Corp (USA) |
| 14629-65 | Calgon Carbon Uv Technologies Llc Dba Hyde Marine (USA) |
| Reference | Meaning |
|---|---|
| 252409R91 | 5/9 Secondary reference International Harvester Co Agricultural Equipment Div |
| 252409R91 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
NSN 3110-00-227-3541 is a Bearing,roller,tapered, manufactured by Westinghouse Electric Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-227-3541 has 4 manufacturer part numbers on file: WW220-856 (Schindler Elevator Corporation), 67787-67720 (The Timken Corporation), WW220-856 (Westinghouse Electric Corp), 14629-65 (Calgon Carbon Uv Technologies Llc Dba Hyde Marine).
Key specifications for WW220-856: Retainer Fabrication Method: PRESSED; Cup Width: 1.5000 INCHES NOMINAL IN; Style Designator: STRAIGHT BORE, NORMAL ANGLE; Overall Width: 1.8750 INCHES NOMINAL IN. 11 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.