The Bearing,ball,annular, cataloged under National Stock Number 3110-01-381-9914, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Mpb Corp Div Timken Super Precision. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-381-9914 |
| Primary Part Number | Y028-800 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Mpb Corp Div Timken Super Precision |
| Status | ACTIVE |
| Lubrication Material | GREASE |
| Outer Ring Width | 0.1980 INCHES MINIMUM AND 0.2030 INCHES MAXIMUM IN |
| Overall Outside Diameter | 0.8735 INCHES MINIMUM AND 0.8765 INCHES MAXIMUM IN |
| Seal Quantity | 2 |
| Bore Diameter | 0.1895 INCHES MINIMUM AND 0.1905 INCHES MAXIMUM IN |
| Material | STEEL COMP E52100 BALL |
| Material | RUBBER SYNTHETIC SEAL |
| Material | STEEL CORROSION RESISTING WASHER |
| Material | STEEL COMP E52100 OUTER RING |
| Material | STEEL COMP E52100 INNER RING |
| Lubrication Material Document and Classification | MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.2400 INCHES MINIMUM AND 0.2450 INCHES MAXIMUM IN |
| 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 |
|---|---|
| Y028-800 PRIMARY | Mpb Corp Div Timken Super Precision (USA) |
| KP3LR8-3FS381 | Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings (USA) |
| Reference | Meaning |
|---|---|
| 4D0056-1 | 3/2 Design control — primary reference U.S. Government activity |
| KP3R8SD705 | 5/2 Secondary reference U.S. Government activity |
| KP3LR8-3FS381 | 5/9 Secondary reference Timken Co Div the Timken Company |
NSN 3110-01-381-9914 is a Bearing,ball,annular, manufactured by Mpb Corp Div Timken Super Precision, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-381-9914 has 2 manufacturer part numbers on file: Y028-800 (Mpb Corp Div Timken Super Precision), KP3LR8-3FS381 (Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings).
Key specifications for Y028-800: Lubrication Material: GREASE; Outer Ring Width: 0.1980 INCHES MINIMUM AND 0.2030 INCHES MAXIMUM IN; Overall Outside Diameter: 0.8735 INCHES MINIMUM AND 0.8765 INCHES MAXIMUM IN; Seal Quantity: 2. 12 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.