The Bearing,ball,airframe, cataloged under National Stock Number 3110-01-015-1716, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 3110-01-015-1716 |
| Primary Part Number | MS21428-46 |
| Item Name | Bearing,ball,airframe |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Bearing Seal Type | CONTACT |
| Lubrication Material | GREASE |
| Outer Ring Width | 0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| Style Designator | SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE |
| Overall Outside Diameter | 2.8743 INCHES MINIMUM AND 2.8750 INCHES MAXIMUM IN |
| Load Direction | RADIAL |
| Surface Treatment | CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES |
| Seal Quantity | 2 |
| Bore Diameter | 2.3117 INCHES MINIMUM AND 2.3125 INCHES MAXIMUM IN |
| Material | STEEL COMP E52100 BALL |
| Material | STEEL COMP E52100 OUTER RING |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE AND GLASS FIBER SEAL |
| Material | STEEL COMP E52100 INNER RING |
| Lubrication Material Document and Classification | MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.2785 INCHES MINIMUM AND 0.2810 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 |
|---|---|
| 083-0811-01 FIND 022 | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| MB546DDFS464 | Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings (USA) |
| MS21428-46 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| 03-6101-09 | 5/9 Secondary reference Lucas Aerospace Power Equipment Corporation |
| MB546DDFS464 | 5/9 Secondary reference Timken Co Div the Timken Company |
| AS21428 | 3/1 Design control — primary reference Sae International Dba Sae International |
| MS21428-46 | 5/9 Secondary reference U.S. Government activity |
| AS21428 | 5/9 Secondary reference U.S. Government activity |
| MS21428-46 | 5/9 Secondary reference U.S. Government activity |
NSN 3110-01-015-1716 is a Bearing,ball,airframe, manufactured by Sae International Dba Sae International, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-015-1716 has 3 manufacturer part numbers on file: 083-0811-01 FIND 022 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), MB546DDFS464 (Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings), MS21428-46 (Sae International Dba Sae International).
5 possible matches (shared part number, not a government interchangeability claim): 3110-01-115-4363, 3110-01-124-0953, 3110-01-201-6932. Verify interchangeability with system specifications before substitution.
Key specifications for MS21428-46: Bearing Seal Type: CONTACT; Lubrication Material: GREASE; Outer Ring Width: 0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN; Style Designator: SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE. 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.