The Bearing,ball,duplex, cataloged under National Stock Number 3110-00-540-5891, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Solar Turbines Incorporated Dba Solar Turbines Incorporated. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-540-5891 |
| Primary Part Number | 11940 |
| Item Name | Bearing,ball,duplex |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Solar Turbines Incorporated Dba Solar Turbines Incorporated |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Internal Clearance | 0.0090 INCHES MINIMUM AXIAL AND 0.0110 INCHES MAXIMUM AXIAL IN |
| Surface Finish | GROUND |
| Style Designator | UNIVERSAL GROUND FACES, COUNTERBORED OUTER RING, NON-SEPARABLE |
| Overall Outside Diameter | 3.5430 INCHES MINIMUM AND 3.5433 INCHES MAXIMUM IN |
| Load Direction | RADIAL |
| Standard Tolerance Designation | ABEC NO.5 |
| Bore Diameter | 1.5746 INCHES MINIMUM AND 1.5748 INCHES MAXIMUM IN |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | OIL LUBRICATION |
| Material | STEEL BALL |
| Material | RUBBER SYNTHETIC RETAINER |
| Lubrication Material Document and Classification | SAE 10 ASSN STD 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 |
|---|---|
| 11940 PRIMARY | Solar Turbines Incorporated Dba Solar Turbines Incorporated (USA) |
| Reference | Meaning |
|---|---|
| 11940 | 5/9 Secondary reference Rtx Corporation Div Pratt & Whitney |
NSN 3110-00-540-5891 is a Bearing,ball,duplex, manufactured by Solar Turbines Incorporated Dba Solar Turbines Incorporated, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-540-5891 has 1 manufacturer part number on file: 11940 (Solar Turbines Incorporated Dba Solar Turbines Incorporated).
2 possible matches (shared part number, not a government interchangeability claim): 5306-01-163-0419, 5930-01-481-7622. Verify interchangeability with system specifications before substitution.
Key specifications for 11940: Retainer Fabrication Method: MACHINED; Internal Clearance: 0.0090 INCHES MINIMUM AXIAL AND 0.0110 INCHES MAXIMUM AXIAL IN; Surface Finish: GROUND; 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.