The Bearing,roller,airframe, cataloged under National Stock Number 3110-00-271-0011, 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 14 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-271-0011 |
| Primary Part Number | GB520P4 |
| Item Name | Bearing,roller,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 | 0.4640 INCHES NOMINAL IN |
| Style Designator | SPHERICAL ROLLER, DOUBLE CLOSURE, SELF ALIGNING |
| Overall Outside Diameter | 0.9014 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES |
| Seal Quantity | 2 |
| Bore Diameter | 0.2520 INCHES NOMINAL IN |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | RUBBER SYNTHETIC SEAL |
| Material | STEEL ROLLER |
| Lubrication Material Document and Classification | MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.6250 INCHES NOMINAL 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 |
|---|---|
| GB520P4 PRIMARY | Rbc Aircraft Products, Inc. (USA) |
| DSRP4FS464 | Rbc Bearings Incorporated Div West Trenton Division (USA) |
| Reference | Meaning |
|---|---|
| DSRP4FS160 | 5/9 Secondary reference Timken Co Div the Timken Company |
| DSRP4FS160 | 5/1 Secondary reference Rbc Aircraft Products, Inc. |
| GB520P4 | 5/9 Secondary reference Timken Co Div the Timken Company |
| DSRP4 | 5/9 Secondary reference Timken Europa Sarl |
| DSRP4F160 | 5/9 Secondary reference Rbc Aircraft Products, Inc. |
| DSRP4 | 5/9 Secondary reference Timken Co Div the Timken Company |
| DSRP4MILG3278 | 5/9 Secondary reference Timken Co Div the Timken Company |
| DSRP4F160 | 5/9 Secondary reference Timken Co Div the Timken Company |
| GB520P4 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
NSN 3110-00-271-0011 is a Bearing,roller,airframe, manufactured by Rbc Aircraft Products, Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-271-0011 has 2 manufacturer part numbers on file: GB520P4 (Rbc Aircraft Products, Inc.), DSRP4FS464 (Rbc Bearings Incorporated Div West Trenton Division).
Key specifications for GB520P4: Bearing Seal Type: CONTACT; Lubrication Material: GREASE; Outer Ring Width: 0.4640 INCHES NOMINAL IN; Style Designator: SPHERICAL ROLLER, DOUBLE CLOSURE, SELF ALIGNING. 14 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.