The Bearing,sleeve, cataloged under National Stock Number 3120-00-488-4657, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Rbc Aircraft Products, Inc.. Government technical data includes 21 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-00-488-4657 |
| Primary Part Number | FBJW20TC26M23 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Rbc Aircraft Products, 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 | 1.2300 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.8137 INCHES MINIMUM AND 0.8142 INCHES MAXIMUM IN |
| Hardness Rating | 27.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OUTER LAYER |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.6255 INCHES MINIMUM AND 0.6265 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OUTER LAYER |
| Flange Width | 0.0575 INCHES MINIMUM AND 0.0625 INCHES MAXIMUM IN |
| Material | STEEL COMP 630 OVERALL |
| 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 |
|---|---|
| FBJW20TC26M23 PRIMARY | Rbc Aircraft Products, Inc. (USA) |
| 32FB10C23 PRIMARY | Roller Bearing Company of America, Inc. (USA) |
| 07-221-10-23 PRIMARY | Rbc Transport Dynamics Corp Div Rbc Transport Dynamics (USA) |
| ATLF10SS23 PRIMARY | New Hampshire Ball Bearings Inc Div Astro Division (USA) |
| Reference | Meaning |
|---|---|
| FBJW20TC26M23 | 5/9 Secondary reference Timken Co Div the Timken Company |
| STSKJ101-10C023 | 7/2 Vendor item drawing reference U.S. Government activity |
| KJN10C023-141 | 5/9 Secondary reference U.S. Government activity |
| 103-2010-023 | 5/9 Secondary reference Rexnord Industries, Llc Div Aerosspace Bearing Operation |
NSN 3120-00-488-4657 is a Bearing,sleeve, manufactured by Rbc Aircraft Products, Inc., classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-00-488-4657 has 4 manufacturer part numbers on file: FBJW20TC26M23 (Rbc Aircraft Products, Inc.), 32FB10C23 (Roller Bearing Company of America, Inc.), 07-221-10-23 (Rbc Transport Dynamics Corp Div Rbc Transport Dynamics), ATLF10SS23 (New Hampshire Ball Bearings Inc Div Astro Division).
Key specifications for FBJW20TC26M23: 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. 21 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.