The Bearing,ball,duplex, cataloged under National Stock Number 3110-01-159-2821, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-159-2821 |
| Item Name | Bearing,ball,duplex |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Internal Fit-Up Designation | LOOSE |
| Surface Finish | GROUND |
| Bearing Preload Designation | LIGHT |
| Style Designator | COUNTERBORED OUTER RINGS, NON-SEPARABLE, TANDEM MOUNTING |
| Overall Outside Diameter | 110.00 MILLIMETERS NOMINAL MM |
| Load Direction | ANGULAR |
| Standard Tolerance Designation | ABEC NO.7 |
| Bore Diameter | 60.00 MILLIMETERS NOMINAL MM |
| Material | STEEL OVERALL |
| Material | GREASE LUBRICATION |
| Lubrication Material Document and Classification | ANDOK C,FSCM 29700 MFR REF 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 |
| Reference | Meaning |
|---|---|
| 820-4551176-3 | 5/2 Secondary reference U.S. Government activity |
| 20212-L7C(DT) | 3/9 Design control — primary reference General Motors Corp Delco Moraine Ndh Div |
NSN 3110-01-159-2821 is a Bearing,ball,duplex, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3110-01-275-2623. Verify interchangeability with system specifications before substitution.
Key specifications for 3110-01-159-2821: Retainer Fabrication Method: PRESSED; Internal Fit-Up Designation: LOOSE; Surface Finish: GROUND; Bearing Preload Designation: LIGHT. 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.