The Bearing,ball,duplex, cataloged under National Stock Number 3110-00-059-3874, 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 16 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-059-3874 |
| Primary Part Number | 38950-00917-101 |
| Item Name | Bearing,ball,duplex |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Mpb Corp Div Timken Super Precision |
| Status | ACTIVE |
| Bearing Seal Type | CONTACT |
| Internal Fit-Up Designation | STANDARD |
| Surface Finish | GROUND |
| Style Designator | SHOULDERED INNER RING, NON-SEPARABLE, FACE TO FACE MOUNTING |
| Overall Outside Diameter | 1.3745 INCHES MINIMUM AND 1.3750 INCHES MAXIMUM IN |
| Load Direction | RADIAL |
| Seal Quantity | 2 |
| Standard Tolerance Designation | ABEC NO.1 |
| Bore Diameter | 0.6247 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | RUBBER SYNTHETIC SEAL |
| Material | STEEL SNAP RING |
| Material | GREASE LUBRICATION |
| Material | STEEL BALL |
| Lubrication Material Document and Classification | MIL-G-25537 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 |
|---|---|
| 38950-00917-101 PRIMARY | Mpb Corp Div Timken Super Precision (USA) |
| 38950-00917-101 | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| S7P4DBE8514 | 5/9 Secondary reference Timken Co Div the Timken Company |
| S7P4DB8514 | 5/9 Secondary reference Timken Co Div the Timken Company |
| MPBY252 | 5/1 Secondary reference Mpb Corp Div Timken Super Precision |
| S7P4DB8514 | 5/9 Secondary reference Rbc Aircraft Products, Inc. |
NSN 3110-00-059-3874 is a Bearing,ball,duplex, manufactured by Mpb Corp Div Timken Super Precision, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-059-3874 has 2 manufacturer part numbers on file: 38950-00917-101 (Mpb Corp Div Timken Super Precision), 38950-00917-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 38950-00917-101: Bearing Seal Type: CONTACT; Internal Fit-Up Designation: STANDARD; Surface Finish: GROUND; Style Designator: SHOULDERED INNER RING, NON-SEPARABLE, FACE TO FACE MOUNTING. 16 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.