The Bearing,ball,airframe, cataloged under National Stock Number 3110-01-040-4840, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-040-4840 |
| Item Name | Bearing,ball,airframe |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Bearing Seal Type | CONTACT |
| Lubrication Material | GREASE |
| Outer Ring Width | 0.2500 INCHES NOMINAL IN |
| Style Designator | SINGLE ROW INNER RING EXTENDED BOTH SIDES |
| Overall Outside Diameter | 1.5000 INCHES NOMINAL IN |
| Load Direction | RADIAL |
| Seal Quantity | 2 |
| Standard Tolerance Designation | ABEC NO. 7T |
| Bore Diameter | 1.0625 INCHES NOMINAL IN |
| Material | STEEL COMP 440A BALL A |
| Material | STEEL COMP 440A INNER RING A |
| Material | STEEL COMP 440A OUTER RING A |
| Material | PLASTIC TETRAFLUOROETHYLENE SEAL |
| Material | STEEL COMP 410 RETAINER |
| Lubrication Material Document and Classification | DC510-500CS,FSCM 71984 MFR REF SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.2812 INCHES NOMINAL IN |
| 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 |
|---|---|
| SR541LL4D3K511-278 | 5/9 Secondary reference U.S. Government activity |
| SR541LL4D3K511-2 | C/1 Advisory reference — outside the item-of-supply concept Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation |
| SSRI-541QQ4EERA5P511LY66 | 5/9 Secondary reference U.S. Government activity |
| SSRI-541QQ4EERA5P511LY40 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3110-01-040-4840 is a Bearing,ball,airframe, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
Key specifications for 3110-01-040-4840: Retainer Fabrication Method: PRESSED; Bearing Seal Type: CONTACT; Lubrication Material: GREASE; Outer Ring Width: 0.2500 INCHES NOMINAL IN. 17 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.