The Bearing,ball,annular, cataloged under National Stock Number 3110-01-666-0913, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3110-01-666-0913 |
| Primary Part Number | 18897AS4 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings |
| Status | ACTIVE |
| Lubrication Material | OIL LUBRICATING |
| Surface Finish | GROUND |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE, BACK TO BACK MOUNTING |
| Overall Outside Diameter | 3.5000 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT |
| Load Direction | ANGULAR |
| Bore Diameter | 3.0000 INCHES NOMINAL IN |
| Material | STEEL COMP 440C OVERALL |
| Material | CERAMIC BALL |
| Lubrication Material Document and Classification | BRAYCOAT 815Z OIL 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 |
|---|---|
| 18897AS4 PRIMARY | Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings (USA) |
| Reference | Meaning |
|---|---|
| 4987113-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3110-01-666-0913 is a Bearing,ball,annular, manufactured by Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-666-0913 has 1 manufacturer part number on file: 18897AS4 (Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings).
Key specifications for 18897AS4: Lubrication Material: OIL LUBRICATING; Surface Finish: GROUND; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE, BACK TO BACK MOUNTING; Overall Width: 0.5000 INCHES NOMINAL IN. 10 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.