The Bearing,ball,duplex, cataloged under National Stock Number 3110-01-254-8955, 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16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-254-8955 |
| Item Name | Bearing,ball,duplex |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Status | ACTIVE |
| Bearing Preload Rating | 5.0 POUNDS MINIMUM AND 10.0 POUNDS MAXIMUM LBS |
| Internal Clearance | 0.0005 INCHES MINIMUM RADIAL AND 0.0011 INCHES MAXIMUM RADIAL IN |
| Surface Finish | GROUND |
| Bearing Preload Designation | LIGHT |
| Style Designator | COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING |
| Overall Outside Diameter | 1.3125 INCHES NOMINAL IN |
| Contact Angle | 13.0 DEGREES MINIMUM AND 23.0 DEGREES MAXIMUM |
| Load Direction | ANGULAR |
| Surface Treatment | PASSIVATE ALL EXTERNAL/EXPOSED METAL SURFACES |
| Standard Tolerance Designation | ABEC NO. 5T |
| Bore Diameter | 1.0625 INCHES NOMINAL IN |
| Material | STEEL COMP 440C INNER RING |
| Material | OIL LUBRICATION |
| Material | STEEL COMP 440C OUTER RING |
| Material | STEEL COMP 440C BALL |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE RETAINER |
| 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 |
|---|---|
| SR1742B3T-14C16WK511-2 | 3/2 Design control — primary reference U.S. Government activity |
| 972155-3 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
NSN 3110-01-254-8955 is a Bearing,ball,duplex, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
Key specifications for 3110-01-254-8955: Bearing Preload Rating: 5.0 POUNDS MINIMUM AND 10.0 POUNDS MAXIMUM LBS; Internal Clearance: 0.0005 INCHES MINIMUM RADIAL AND 0.0011 INCHES MAXIMUM RADIAL IN; Surface Finish: GROUND; Bearing Preload Designation: LIGHT. 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.