The Bearing,ball,annular, cataloged under National Stock Number 3110-01-339-5979, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Rmb Miniature Bearings Inc. Government technical data includes 11 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-339-5979 |
| Primary Part Number | RA5160X |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Rmb Miniature Bearings Inc |
| Status | ACTIVE |
| Lubrication Material | OIL |
| Surface Finish | GROUND |
| Style Designator | SHOULDERED INNER RING, SEPARABLE |
| Overall Outside Diameter | 16.0 MILLIMETERS NOMINAL MM |
| Bore Shape | STRAIGHT |
| Contact Angle | 17.0 DEGREES MINIMUM AND 28.0 DEGREES MAXIMUM |
| Load Direction | ANGULAR |
| Standard Tolerance Designation | ABEC NO. 5P |
| Bore Diameter | 5.0 MILLIMETERS NOMINAL MM |
| Material | STEEL COMP 440C OVERALL |
| Lubrication Material Document and Classification | MIL-L-6085 MIL SPEC 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 |
|---|---|
| RA5160X PRIMARY | Rmb Miniature Bearings Inc (USA) |
NSN 3110-01-339-5979 is a Bearing,ball,annular, manufactured by Rmb Miniature Bearings Inc, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-339-5979 has 1 manufacturer part number on file: RA5160X (Rmb Miniature Bearings Inc).
Key specifications for RA5160X: Lubrication Material: OIL; Surface Finish: GROUND; Style Designator: SHOULDERED INNER RING, SEPARABLE; Overall Width: 5.0 MILLIMETERS NOMINAL MM. 11 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.