The Bearing,ball,duplex, cataloged under National Stock Number 3110-01-131-2990, 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 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-131-2990 |
| Primary Part Number | 2MM9107WOPCRDULFS160B |
| Item Name | Bearing,ball,duplex |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Timken Co Div the Timken Company |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Bearing Seal Type | CONTACT |
| Bearing Preload Rating | 20.0 POUNDS NOMINAL LBS |
| Surface Finish | GROUND |
| Bearing Preload Designation | LIGHT |
| Overall Outside Diameter | 62.00 MILLIMETERS NOMINAL MM |
| Load Direction | ANGULAR |
| Seal Quantity | 2 |
| Standard Tolerance Designation | ABEC NO.7 |
| Bore Diameter | 35.00 MILLIMETERS NOMINAL MM |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | RUBBER SYNTHETIC SEAL |
| Material | GREASE LUBRICATION |
| Material | PLASTIC PHENOLIC RETAINER |
| Material | STEEL BALL |
| Lubrication Material Document and Classification | BEACON 325,FSCM 29700 MFR REF SINGLE MATERIAL RESPONSE |
| 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 |
|---|---|
| 2MM9107WOPCRDULFS160B PRIMARY | Timken Co Div the Timken Company (USA) |
| Reference | Meaning |
|---|---|
| 305604 | 7/2 Vendor item drawing reference Cincinnati Machine Co |
| 172705 | 5/9 Secondary reference Cincinnati Machine Co |
NSN 3110-01-131-2990 is a Bearing,ball,duplex, manufactured by Timken Co Div the Timken Company, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-131-2990 has 1 manufacturer part number on file: 2MM9107WOPCRDULFS160B (Timken Co Div the Timken Company).
Key specifications for 2MM9107WOPCRDULFS160B: Retainer Fabrication Method: MACHINED; Bearing Seal Type: CONTACT; Bearing Preload Rating: 20.0 POUNDS NOMINAL LBS; Surface Finish: GROUND. 17 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.