The Bearing,ball,annular, cataloged under National Stock Number 3110-01-256-4860, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation. Government technical data includes 25 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-256-4860 |
| Primary Part Number | SR186SWX3K4VLO-11 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation |
| Status | ACTIVE |
| Retainer Fabrication Method | STAMPED |
| Lubrication Material | OIL LUBRICATING |
| Bearing Preload Rating | 5.0 POUNDS NOMINAL LBS |
| Internal Clearance | 0.0003 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN |
| Surface Finish | GROUND |
| Shield Quantity | 1 |
| Reference Data and Literature | MFR REF R166 |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material Document and Classification | AISI UNS S30200 ASSN STD SINGLE MATERIAL RESPONSE SHIELD |
| Material Document and Classification | AISI UNS S43000 ASSN STD 1ST MATERIAL RESPONSE OR AISI UNS S30500 ASSN STD 2ND MATERIAL RESPONSE CAGE |
| Material Document and Classification | AISI UNS S44004 ASSN STD SINGLE MATERIAL RESPONSE BALL |
| Material Document and Classification | AISI UNS S44004 ASSN STD SINGLE MATERIAL RESPONSE INNER RING |
| Material Document and Classification | AISI UNS S44004 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING |
| Overall Outside Diameter | 0.5000 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Functional Description | DEEP GROOVE SHIELDED LOW TORQUE LEVEL LIGHT PRELOAD INSTRUMENT |
| Standard Tolerance Designation | AFBMA CLASS 4 |
| Bore Diameter | 0.1875 INCHES NOMINAL IN |
| Material | STEEL COMP 440C INNER RING |
| Material | STEEL COMP 440C OUTER RING |
| Material | STEEL COMP 440C BALL |
| Material | STEEL COMP 302 SHIELD |
| Material | STEEL COMP 430 OR STEEL COMP 305 CAGE |
| Lubrication Material Document and Classification | MIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE OR WINSORLUBE L245X MFR REF 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 |
|---|---|
| SR186SWX3K4VLO-11 PRIMARY | Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation (USA) |
| Reference | Meaning |
|---|---|
| SR186SWX3K4VLO-11 | 5/9 Secondary reference Barden Sarl |
NSN 3110-01-256-4860 is a Bearing,ball,annular, manufactured by Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-256-4860 has 1 manufacturer part number on file: SR186SWX3K4VLO-11 (Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation).
Key specifications for SR186SWX3K4VLO-11: Retainer Fabrication Method: STAMPED; Lubrication Material: OIL LUBRICATING; Bearing Preload Rating: 5.0 POUNDS NOMINAL LBS; Internal Clearance: 0.0003 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN. 25 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.