The Bearing,ball,airframe, cataloged under National Stock Number 3110-01-015-1038, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Rbc Aircraft Products, Inc.. Government technical data includes 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-015-1038 |
| Primary Part Number | MDW5FS464 |
| Item Name | Bearing,ball,airframe |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Rbc Aircraft Products, Inc. |
| Status | ACTIVE |
| Bearing Seal Type | CONTACT |
| Lubrication Material | GREASE |
| Outer Ring Width | 0.8080 INCHES MINIMUM AND 0.8130 INCHES MAXIMUM IN |
| Style Designator | DOUBLE ROW |
| Overall Outside Diameter | 0.8746 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN |
| Load Direction | RADIAL |
| Surface Treatment | CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES |
| Seal Quantity | 2 |
| Bore Diameter | 0.3122 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN |
| Material | STEEL COMP E52100 BALL |
| Material | PLASTIC TETRAFLUOROETHYLENE SEAL |
| Material | STEEL COMP E52100 OUTER RING |
| Material | STEEL COMP E52100 INNER RING |
| Lubrication Material Document and Classification | MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.9355 INCHES MINIMUM AND 0.9380 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 |
|---|---|
| MDW5FS464 | Rbc Aircraft Products, Inc. (USA) |
| MDW5 WITH MIL-G-81322 GREASE | New Hampshire Ball Bearings Inc Div Precision Division (USA) |
| Reference | Meaning |
|---|---|
| MDW5 | 5/9 Secondary reference Timken Co Div the Timken Company |
| MDW5FS464 | 5/9 Secondary reference Timken Co Div the Timken Company |
| MDW5 WITH MIL-G-81322 GREASE | 3/2 Design control — primary reference U.S. Government activity |
NSN 3110-01-015-1038 is a Bearing,ball,airframe, manufactured by Rbc Aircraft Products, Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-015-1038 has 2 manufacturer part numbers on file: MDW5FS464 (Rbc Aircraft Products, Inc.), MDW5 WITH MIL-G-81322 GREASE (New Hampshire Ball Bearings Inc Div Precision Division).
2 possible matches (shared part number, not a government interchangeability claim): 3110-01-183-6632, 5920-01-280-0788. Verify interchangeability with system specifications before substitution.
Key specifications for MDW5FS464: Bearing Seal Type: CONTACT; Lubrication Material: GREASE; Outer Ring Width: 0.8080 INCHES MINIMUM AND 0.8130 INCHES MAXIMUM IN; Style Designator: DOUBLE ROW. 15 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.