The Bearing,ball,duplex, cataloged under National Stock Number 3110-01-182-6680, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Mpb Corporation Dba Mpb Corp. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-182-6680 |
| Primary Part Number | 5903448 |
| Item Name | Bearing,ball,duplex |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Mpb Corporation Dba Mpb Corp |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Internal Clearance | 0.0005 INCHES MINIMUM RADIAL AND 0.0011 INCHES MAXIMUM RADIAL IN |
| Surface Finish | GROUND |
| Style Designator | COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING |
| Material Document and Classification | UNABLE TO DECODE |
| Overall Outside Diameter | 2.4406 INCHES MINIMUM AND 2.4409 INCHES MAXIMUM IN |
| Load Direction | RADIAL |
| Standard Tolerance Designation | ABEC NO.5 |
| Bore Diameter | 0.9841 INCHES MINIMUM AND 0.9843 INCHES MAXIMUM IN |
| Material | STEEL INNER RACE |
| Material | STEEL OUTER RACE |
| Material | STEEL BALL |
| Material | STEEL COMP 4340 CAGE |
| 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 |
|---|---|
| 5903448 PRIMARY | Mpb Corporation Dba Mpb Corp (USA) |
| Reference | Meaning |
|---|---|
| 5903448 | 3/2 Design control — primary reference U.S. Government activity |
| 5HJH-305-38 | 5/1 Secondary reference Mpb Corporation Dba Mpb Corp |
| 5HJH-305-38 | 5/1 Secondary reference Mpb Corp Div Timken Super Precision |
| MR305B12C3K1217-1A5 | 5/1 Secondary reference U.S. Government activity |
| 5903448 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 3110-01-182-6680 is a Bearing,ball,duplex, manufactured by Mpb Corporation Dba Mpb Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-182-6680 has 1 manufacturer part number on file: 5903448 (Mpb Corporation Dba Mpb Corp).
Key specifications for 5903448: Retainer Fabrication Method: MACHINED; Internal Clearance: 0.0005 INCHES MINIMUM RADIAL AND 0.0011 INCHES MAXIMUM RADIAL IN; Surface Finish: GROUND; Style Designator: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING. 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.