The Bearing,ball,airframe, cataloged under National Stock Number 3110-01-040-3433, 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 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-040-3433 |
| Primary Part Number | AW4AKFS252 |
| Item Name | Bearing,ball,airframe |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Rbc Aircraft Products, Inc. |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Bearing Seal Type | CONTACT |
| Lubrication Material | SILICON |
| Outer Ring Width | 0.3070 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Style Designator | SINGLE ROW INNER RING EXTENDED BOTH SIDES |
| Overall Outside Diameter | 0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| Load Direction | RADIAL |
| Seal Quantity | 2 |
| Bore Diameter | 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| Material | STEEL COMP 440A BALL A |
| Material | STEEL COMP 440A INNER RING A |
| Material | STEEL COMP 440A OUTER RING A |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAL |
| Material | STEEL CORROSION RESISTING RETAINER |
| Lubrication Material Document and Classification | ETR GRADE D,FSCM 54527 MFR REF SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.4355 INCHES MINIMUM AND 0.4380 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 |
|---|---|
| AW4AKFS252 PRIMARY | Rbc Aircraft Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| AW4AKFS252 | 5/9 Secondary reference Timken Co Div the Timken Company |
NSN 3110-01-040-3433 is a Bearing,ball,airframe, manufactured by Rbc Aircraft Products, Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-040-3433 has 1 manufacturer part number on file: AW4AKFS252 (Rbc Aircraft Products, Inc.).
Key specifications for AW4AKFS252: Retainer Fabrication Method: PRESSED; Bearing Seal Type: CONTACT; Lubrication Material: SILICON; Outer Ring Width: 0.3070 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN. 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.