The Bearing,roller,tapered, cataloged under National Stock Number 3110-01-356-7233, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Timken Gears & Services Inc. Div Philadelphia Gear. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-356-7233 |
| Primary Part Number | HH221442 AND HH221410 |
| Item Name | Bearing,roller,tapered |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Timken Gears & Services Inc. Div Philadelphia Gear |
| Status | ACTIVE |
| Cup Width | 1.8125 INCHES NOMINAL1.8125 INCHES NOMINAL IN |
| Style Designator | STRAIGHT BORE, NORMAL ANGLESTRAIGHT BORE, NORMAL ANGLE |
| Overall Outside Diameter | 7.5000 INCHES NOMINAL7.5000 INCHES NOMINAL IN |
| Backface Corner Radius | 0.1300 INCHES NOMINAL0.1300 INCHES NOMINAL IN |
| Cone Corner Radius | 0.1400 INCHES NOMINAL0.1400 INCHES NOMINAL IN |
| Standout Width | 2.8125 INCHES NOMINAL2.8125 INCHES NOMINAL IN |
| Cone Width | 4.6250 INCHES NOMINAL4.6250 INCHES NOMINAL IN |
| Standard Tolerance Designation | AFBMA CLASS 2AFBMA CLASS 2 |
| Bore Diameter | 3.8750 INCHES NOMINAL3.8750 INCHES NOMINAL IN |
| 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 |
|---|---|
| HH221442 AND HH221410 PRIMARY | Timken Gears & Services Inc. Div Philadelphia Gear (USA) |
| Reference | Meaning |
|---|---|
| 31000-0173/31000-0178 | 5/9 Secondary reference Timken Gears & Services Inc. Div Philadelphia Gear |
NSN 3110-01-356-7233 is a Bearing,roller,tapered, manufactured by Timken Gears & Services Inc. Div Philadelphia Gear, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-356-7233 has 1 manufacturer part number on file: HH221442 AND HH221410 (Timken Gears & Services Inc. Div Philadelphia Gear).
Key specifications for HH221442 AND HH221410: Cup Width: 1.8125 INCHES NOMINAL1.8125 INCHES NOMINAL IN; Style Designator: STRAIGHT BORE, NORMAL ANGLESTRAIGHT BORE, NORMAL ANGLE; Overall Width: 4.6250 INCHES NOMINAL4.6250 INCHES NOMINAL IN; Overall Outside Diameter: 7.5000 INCHES NOMINAL7.5000 INCHES NOMINAL IN. 9 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.