The Bearing,ball,duplex, cataloged under National Stock Number 3110-00-034-6440, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is General Electric Company. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-034-6440 |
| Primary Part Number | 672B778P1 |
| Item Name | Bearing,ball,duplex |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Bearing Preload Rating | 10.0 POUNDS NOMINAL LBS |
| Surface Finish | GROUND |
| Bearing Preload Designation | LIGHT |
| Precious Material | SILVER |
| Style Designator | COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING |
| Overall Outside Diameter | 2.6767 INCHES MINIMUM AND 2.6772 INCHES MAXIMUM IN |
| Load Direction | ANGULAR |
| Surface Treatment | SILVER RETAINER |
| Precious Material and Location | RETAINER SURFACE SILVER |
| Standard Tolerance Designation | ABEC NO.1 |
| Bore Diameter | 1.7712 INCHES MINIMUM AND 1.7717 INCHES MAXIMUM IN |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | COPPER ALLOY RETAINER |
| Material | OIL LUBRICATION |
| Material | STEEL BALL |
| Lubrication Material Document and Classification | MIL-L-7808 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 |
|---|---|
| 672B778P1 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 672B778P1 | 3/2 Design control — primary reference U.S. Government activity |
| RDB100B | 5/1 Secondary reference Skf Usa Inc. |
NSN 3110-00-034-6440 is a Bearing,ball,duplex, manufactured by General Electric Company, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-034-6440 has 1 manufacturer part number on file: 672B778P1 (General Electric Company).
Key specifications for 672B778P1: Bearing Preload Rating: 10.0 POUNDS NOMINAL LBS; Surface Finish: GROUND; Bearing Preload Designation: LIGHT; Precious Material: SILVER. 17 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.