The Bearing,roller,track Roller, cataloged under National Stock Number 3110-01-409-1049, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Timken Co Div the Timken Company. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-409-1049 |
| Primary Part Number | YCRS-56 |
| Item Name | Bearing,roller,track Roller |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Timken Co Div the Timken Company |
| Status | ACTIVE |
| Bearing Seal Type | CONTACT |
| Outer Ring Width | 2.0000 INCHES NOMINAL IN |
| Style Designator | TRACK ROLLER |
| Overall Outside Diameter | 3.5000 INCHES NOMINAL IN |
| Seal Quantity | 2 |
| Standard Tolerance Designation | AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS |
| Bore Diameter | 1.1245 INCHES MINIMUM AND 1.1251 INCHES MAXIMUM IN |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | RUBBER SYNTHETIC SEAL |
| Material | STEEL ROLLER |
| Material | STEEL WASHER |
| Inner Ring Width | 2.0625 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 |
|---|---|
| YCRS-56 PRIMARY | Timken Co Div the Timken Company (USA) |
NSN 3110-01-409-1049 is a Bearing,roller,track Roller, manufactured by Timken Co Div the Timken Company, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-409-1049 has 1 manufacturer part number on file: YCRS-56 (Timken Co Div the Timken Company).
Key specifications for YCRS-56: Bearing Seal Type: CONTACT; Outer Ring Width: 2.0000 INCHES NOMINAL IN; Style Designator: TRACK ROLLER; Overall Outside Diameter: 3.5000 INCHES NOMINAL IN. 13 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.