The Bearing,sleeve, cataloged under National Stock Number 3120-01-043-4372, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Roller Bearing Company of America, Inc.. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-043-4372 |
| Primary Part Number | GB528BE5C011 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Roller Bearing Company of America, Inc. |
| Status | ACTIVE |
| Surface Finish | 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY |
| Surface Finish | 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY |
| Surface Finish | 125.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE |
| Surface Finish | 125.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE |
| Surface Finish | 125.0 MICROINCHES RIGHT END SURFACE OF BODY |
| Surface Finish | 125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF FLANGE |
| Corner Shape | SQUARE INSIDE RIGHT CORNER |
| Corner Shape | SQUARE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE OUTSIDE LEFT CORNER |
| Corner Shape | SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Corner Shape | UNDERCUT LEFT FLANGE BODY CORNER |
| Flange Outside Diameter | 0.5520 INCHES MINIMUM AND 0.5720 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.4381 INCHES MINIMUM AND 0.4386 INCHES MAXIMUM IN |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Body Inside Diameter | 0.3125 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OUTER LAYER |
| Flange Width | 0.0620 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN |
| Material | STEEL COMP 630 OUTER LAYER |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE AND GLASS FIBER OR PLASTIC POLYTETRAFLUOROETHYLENE AND PLASTIC POLYETHYLENE TEREPHTHALATE (PET)(POLYESTER) INNER LAYER |
| 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 |
|---|---|
| GB528BE5C011 PRIMARY | Roller Bearing Company of America, Inc. (USA) |
| GB528BE5C011 PRIMARY | Rbc Transport Dynamics Corp Div Rbc Transport Dynamics (USA) |
| GB528BE5C011 PRIMARY | Rexnord Industries, Llc Div Aerosspace Bearing Operation (USA) |
| GB528BE5C011 PRIMARY | New Hampshire Ball Bearings Inc Div Astro Division (USA) |
| Reference | Meaning |
|---|---|
| FBJW10TH011 | C/1 Advisory reference — outside the item-of-supply concept Rbc Aircraft Products, Inc. |
| GB528BE5C011 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
| GDFRC5-011 | 5/1 Secondary reference Roller Bearing Company of America, Inc. |
| 91385-05-011 | 5/1 Secondary reference Rbc Transport Dynamics Corp Div Rbc Transport Dynamics |
| FBJW10TH011 | 5/9 Secondary reference Timken Co Div the Timken Company |
| 120-3005-011 | 5/9 Secondary reference Rexnord Industries, Llc Div Aerosspace Bearing Operation |
| ATGF5SS011 | 5/1 Secondary reference New Hampshire Ball Bearings Inc Div Astro Division |
NSN 3120-01-043-4372 is a Bearing,sleeve, manufactured by Roller Bearing Company of America, Inc., classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-043-4372 has 4 manufacturer part numbers on file: GB528BE5C011 (Roller Bearing Company of America, Inc.), GB528BE5C011 (Rbc Transport Dynamics Corp Div Rbc Transport Dynamics), GB528BE5C011 (Rexnord Industries, Llc Div Aerosspace Bearing Operation), GB528BE5C011 (New Hampshire Ball Bearings Inc Div Astro Division).
Key specifications for GB528BE5C011: Surface Finish: 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY; Surface Finish: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY; Surface Finish: 125.0 MICROINCHES RIGHT END SURFACE OF LEFT FLANGE; Surface Finish: 125.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE. 20 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.