The Bearing,ball,duplex, cataloged under National Stock Number 3110-00-780-0710, 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 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-780-0710 |
| Primary Part Number | 2MM9105WICRDUMFS160 |
| 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 |
| Surface Finish | GROUND |
| Bearing Preload Designation | MEDIUM |
| Style Designator | UNIVERSAL GROUND FACES, COUNTERBORED OUTER RING, NON-SEPARABLE |
| Overall Outside Diameter | 47.0 MILLIMETERS NOMINAL MM |
| Load Direction | ANGULAR |
| Standard Tolerance Designation | ABEC NO.5 |
| Bore Diameter | 25.0 MILLIMETERS NOMINAL MM |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | GREASE LUBRICATION |
| Material | PLASTIC PHENOLIC RETAINER |
| Material | STEEL BALL |
| Lubrication Material Document and Classification | MIL-G-23827 MIL SPEC 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 |
|---|---|
| 2MM9105WICRDUMFS160 PRIMARY | Timken Co Div the Timken Company (USA) |
| 9055711 | Us Army Aviation and Missile Command (USA) |
| 7005C | Nsk Corp Bearing Div (USA) |
| Reference | Meaning |
|---|---|
| 2MM9105CRDUM | 5/9 Secondary reference Timken Co Div the Timken Company |
| 2MM9105WICRDUM | 5/9 Secondary reference Timken Co Div the Timken Company |
NSN 3110-00-780-0710 is a Bearing,ball,duplex, manufactured by Timken Co Div the Timken Company, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-780-0710 has 3 manufacturer part numbers on file: 2MM9105WICRDUMFS160 (Timken Co Div the Timken Company), 9055711 (Us Army Aviation and Missile Command), 7005C (Nsk Corp Bearing Div).
1 possible match (shared part number, not a government interchangeability claim): 5963-01-037-9424. Verify interchangeability with system specifications before substitution.
Key specifications for 2MM9105WICRDUMFS160: Retainer Fabrication Method: MACHINED; Surface Finish: GROUND; Bearing Preload Designation: MEDIUM; Style Designator: UNIVERSAL GROUND FACES, COUNTERBORED OUTER RING, NON-SEPARABLE. 14 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.