The Bearing,roller,cylindrical, cataloged under National Stock Number 3110-00-979-0502, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Regal Beloit America, Inc. Dba Rollway Bearing. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3110-00-979-0502 |
| Primary Part Number | MU5307-093 |
| Item Name | Bearing,roller,cylindrical |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Regal Beloit America, Inc. Dba Rollway Bearing |
| Status | ACTIVE |
| Internal Clearance | 0.0013 INCHES MINIMUM RADIAL AND 0.0019 INCHES MAXIMUM RADIAL IN |
| Internal Fit-Up Designation | STANDARD |
| Locating Feature | ONE DIRECTION |
| Surface Finish | GROUND |
| Style Designator | SINGLE ROW, NON-LOCATING, ONE LIP INNER RING, CYLINDRICAL OUTER RING WITH TWO ROLLER RETAINMENT RINGS ON OUTER,SEPARABLE |
| Material Document and Classification | SAE 52100 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING |
| Material Document and Classification | SAE 52100 ASSN STD SINGLE MATERIAL RESPONSE INNER RING |
| Material Document and Classification | SAE 52100 ASSN STD SINGLE MATERIAL RESPONSE RETAINER |
| Overall Outside Diameter | 3.1496 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT |
| Bore Diameter | 1.3780 INCHES NOMINAL IN |
| Material | STEEL COMP E52100 ROLLER |
| Material | STEEL COMP E52100 OUTER RING |
| Material | STEEL COMP E52100 INNER RING |
| 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 |
|---|---|
| MU5307-093 PRIMARY | Regal Beloit America, Inc. Dba Rollway Bearing (USA) |
| Reference | Meaning |
|---|---|
| A218060 | 5/9 Secondary reference Joy Global Underground Mining Llc |
| A218060 | 5/9 Secondary reference U.S. Government activity |
NSN 3110-00-979-0502 is a Bearing,roller,cylindrical, manufactured by Regal Beloit America, Inc. Dba Rollway Bearing, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-979-0502 has 1 manufacturer part number on file: MU5307-093 (Regal Beloit America, Inc. Dba Rollway Bearing).
Key specifications for MU5307-093: Internal Clearance: 0.0013 INCHES MINIMUM RADIAL AND 0.0019 INCHES MAXIMUM RADIAL IN; Internal Fit-Up Designation: STANDARD; Locating Feature: ONE DIRECTION; Surface Finish: GROUND. 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.