The Bearing,ball,annular, cataloged under National Stock Number 3110-01-327-7989, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Mpb Corporation Dba Mpb Corp. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3110-01-327-7989 |
| Primary Part Number | 5819890 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Mpb Corporation Dba Mpb Corp |
| Status | ACTIVE |
| Internal Clearance | 0.0002 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN |
| Material Document and Classification | AMS 6491 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING |
| Material Document and Classification | AMS 6491 ASSN STD SINGLE MATERIAL RESPONSE INNER RING |
| Material Document and Classification | AMS 6414 ASSN STD SINGLE MATERIAL RESPONSE SEPARATOR |
| Overall Outside Diameter | 1.2596 INCHES MINIMUM AND 1.2598 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Standard Tolerance Designation | ABEC NO.5 |
| Bore Diameter | 0.5904 INCHES MINIMUM AND 0.5906 INCHES MAXIMUM IN |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | STEEL COMP 4340 SEPARATOR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5819890 | Naval Sea Systems Command (USA) |
| 5819890 PRIMARY | Mpb Corporation Dba Mpb Corp (USA) |
| Reference | Meaning |
|---|---|
| 5HKDH102-123 | 5/1 Secondary reference Mpb Corporation Dba Mpb Corp |
| MTR-102SD600M1A5P25L02K | 5/1 Secondary reference U.S. Government activity |
| 5819890 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3110-01-327-7989 is a Bearing,ball,annular, manufactured by Mpb Corporation Dba Mpb Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-327-7989 has 2 manufacturer part numbers on file: 5819890 (Naval Sea Systems Command), 5819890 (Mpb Corporation Dba Mpb Corp).
Key specifications for 5819890: Internal Clearance: 0.0002 INCHES MINIMUM RADIAL AND 0.0005 INCHES MAXIMUM RADIAL IN; Material Document and Classification: AMS 6491 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING; Material Document and Classification: AMS 6491 ASSN STD SINGLE MATERIAL RESPONSE INNER RING; Material Document and Classification: AMS 6414 ASSN STD SINGLE MATERIAL RESPONSE SEPARATOR. 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.
NSN 3110-01-327-7989 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.