The Cup,tapered Roller Bearing, cataloged under National Stock Number 3110-01-342-0066, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Meritor Heavy Vehicle Systems, Llc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Cup,tapered Roller Bearing |
| FSC / FSG | 3110 — Bearings, Antifriction, Unmounted (FSG 31) |
| Manufacturers | Meritor Heavy Vehicle Systems, Llc (CAGE 78500); Meritor Industrial Products, Llc (CAGE 3D6E9) |
| Parameter | Value |
|---|---|
| NSN | 3110-01-342-0066 |
| Primary Part Number | 1228U-593 |
| Item Name | Cup,tapered Roller Bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
NSN 3110-01-342-0066 is a Cup,tapered Roller Bearing, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-342-0066 has 2 manufacturer part numbers on file: 1228U-593 (Meritor Heavy Vehicle Systems, Llc), 1228U-593 (Meritor Industrial Products, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5995-01-354-5839. Verify interchangeability with system specifications before substitution.
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.