The Bearing,roller,tapered, cataloged under National Stock Number 3110-00-138-4409, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. Government technical data includes 9 specifications, cited from the U.S. Government catalog. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-138-4409 |
| Item Name | Bearing,roller,tapered |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Status | ACTIVE |
| Cup Width | 17.00 MILLIMETERS NOMINAL MM |
| Style Designator | STRAIGHT BORE, NORMAL ANGLE |
| Overall Outside Diameter | 81.985 MILLIMETERS MINIMUM AND 82.000 MILLIMETERS MAXIMUM MM |
| Backface Corner Radius | 0.5 MILLIMETERS NOMINAL MM |
| Cone Corner Radius | 3.0 MILLIMETERS NOMINAL MM |
| Standout Width | 4.50 MILLIMETERS NOMINAL MM |
| Cone Width | 21.50 MILLIMETERS NOMINAL MM |
| Bore Diameter | 49.987 MILLIMETERS MINIMUM AND 50.000 MILLIMETERS MAXIMUM MM |
| 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 |
| Reference | Meaning |
|---|---|
| ASTM F2591-06 | 3/1 Design control — primary reference U.S. Government activity |
| ASTM F2591-06/1 | 5/2 Secondary reference U.S. Government activity |
| JLM104948JLM104910 | 5/1 Secondary reference The Timken Corporation |
| 606474 | 5/1 Secondary reference Land Rover |
| DS3225-1 | 5/9 Secondary reference U.S. Government activity |
| DS3225-1 | 5/9 Secondary reference U.S. Government activity |
| 80275-1 | 5/1 Secondary reference U.S. Government activity |
| 606474 | 5/1 Secondary reference Land Rover Australia Jaguar Land Rover Australia Pty Ltd |
| WH107 | 5/9 Secondary reference American Laundry Machinery Inc |
| 206505 | 5/1 Secondary reference Cummins Inc. |
| JLM104910/JLM104948 | 5/1 Secondary reference The Timken Corporation |
| 11205-12 | 5/1 Secondary reference U.S. Government activity |
NSN 3110-00-138-4409 is a Bearing,roller,tapered, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
5 possible matches (shared part number, not a government interchangeability claim): 5330-01-244-3729, 4810-01-276-9733, 5950-01-381-7964. Verify interchangeability with system specifications before substitution.
Key specifications for 3110-00-138-4409: Cup Width: 17.00 MILLIMETERS NOMINAL MM; Style Designator: STRAIGHT BORE, NORMAL ANGLE; Overall Width: 21.50 MILLIMETERS NOMINAL MM; Overall Outside Diameter: 81.985 MILLIMETERS MINIMUM AND 82.000 MILLIMETERS MAXIMUM MM. 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.