The Bearing,ball,annular, cataloged under National Stock Number 3110-01-412-0640, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Skf Usa Inc.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-412-0640 |
| Primary Part Number | 3204ATN9C3 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Skf Usa Inc. |
| Status | ACTIVE |
| Internal Fit-Up Designation | LOOSE |
| Surface Finish | GROUND |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Overall Outside Diameter | 47.0 MILLIMETERS NOMINAL MM |
| Bore Shape | STRAIGHT |
| Contact Angle | 30.0 DEGREES NOMINAL |
| Load Direction | ANGULAR |
| Internal Fit-Up Contact Angular Direction | OUTWARD CONVERGENT |
| Standard Tolerance Designation | ABEC NO.1 |
| Bore Diameter | 20.0 MILLIMETERS NOMINAL MM |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | STEEL BALL |
| Material | PLASTIC POLYAMIDE NYLON AND GLASS FIBER CAGE |
| 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 |
|---|---|
| 3204ATN9C3 PRIMARY | Skf Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| X20444 | 5/9 Secondary reference Ge Aviation Systems Llc Dba Ge Aviation |
NSN 3110-01-412-0640 is a Bearing,ball,annular, manufactured by Skf Usa Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-412-0640 has 1 manufacturer part number on file: 3204ATN9C3 (Skf Usa Inc.).
Key specifications for 3204ATN9C3: Internal Fit-Up Designation: LOOSE; Surface Finish: GROUND; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE; Overall Width: 20.6 MILLIMETERS NOMINAL MM. 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.