The Bearing,roller,cylindrical, cataloged under National Stock Number 3110-01-007-0188, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-007-0188 |
| Item Name | Bearing,roller,cylindrical |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Internal Clearance | 0.0008 INCHES MINIMUM RADIAL AND 0.0012 INCHES MAXIMUM RADIAL IN |
| Locating Feature | ONE DIRECTION |
| Surface Finish | GROUND |
| Style Designator | SINGLE ROW, ONE-DIRECTION LOCATING, TWO LIP INNER RING, ONE LIP OUTER RING, SEPARABLE |
| Material Document and Classification | EMS57720,-50,99193 MFR REF 1ST MATERIAL RESPONSE INNER RING |
| Material Document and Classification | EMS57720,-50,99193 MFR REF 2ND MATERIAL RESPONSE OUTER RING |
| Material Document and Classification | EMS57720,-50,99193 MFR REF 3RD MATERIAL RESPONSE ROLLER |
| Overall Outside Diameter | 37.0 MILLIMETERS NOMINAL MM |
| Bore Shape | STRAIGHT |
| Standard Tolerance Designation | RBEC NO.5 |
| Bore Diameter | 20.0 MILLIMETERS NOMINAL MM |
| Material | STEEL COMP 4340 RETAINER |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | STEEL ROLLER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 367133-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3110-01-007-0188 is a Bearing,roller,cylindrical, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
Key specifications for 3110-01-007-0188: Retainer Fabrication Method: MACHINED; Internal Clearance: 0.0008 INCHES MINIMUM RADIAL AND 0.0012 INCHES MAXIMUM RADIAL IN; Locating Feature: ONE DIRECTION; Surface Finish: GROUND. 16 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.