The Cone and Rollers,tapered Roller, cataloged under National Stock Number 3110-00-101-0810, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is The Timken Corporation. Government technical data includes 6 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 3110-00-101-0810 |
| Primary Part Number | 4388 |
| Item Name | Cone and Rollers,tapered Roller |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | The Timken Corporation |
| Status | ACTIVE |
| Style Designator | NORMAL ANGLE |
| Cone Corner Radius | 0.1406 INCHES NOMINAL IN |
| Cone Width | 1.5900 INCHES NOMINAL IN |
| Standard Tolerance Designation | AFBMA CLASS 2 |
| Bore Diameter | 1.6250 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 |
|---|---|
| 4388 PRIMARY | The Timken Corporation (USA) |
| Reference | Meaning |
|---|---|
| BRTEE1 | 5/9 Secondary reference Barber-Greene Co |
| 31R86 | 5/9 Secondary reference Barber-Greene Co |
| UT9006 | 5/9 Secondary reference U.S. Government activity |
| 31R86 | 5/1 Secondary reference Astec Industries Inc Div Astec Ind. |
| BRTEE1 | C/1 Advisory reference — outside the item-of-supply concept Minnpar, Llc Dba Minnpar |
| 31R86 | C/1 Advisory reference — outside the item-of-supply concept Minnpar, Llc Dba Minnpar |
| JD9016 | 5/1 Secondary reference Deere & Co |
NSN 3110-00-101-0810 is a Cone and Rollers,tapered Roller, manufactured by The Timken Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-101-0810 has 1 manufacturer part number on file: 4388 (The Timken Corporation).
5 possible matches (shared part number, not a government interchangeability claim): 5310-00-450-4656, 6140-01-031-6878, 5340-01-324-7760. Verify interchangeability with system specifications before substitution.
Key specifications for 4388: Style Designator: NORMAL ANGLE; Cone Corner Radius: 0.1406 INCHES NOMINAL IN; Cone Width: 1.5900 INCHES NOMINAL IN; Standard Tolerance Designation: AFBMA CLASS 2. 6 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.