The Bearing,sleeve, cataloged under National Stock Number 3120-01-042-8906, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Rbc Transport Dynamics Corp Div Rbc Transport Dynamics. Government technical data includes 12 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-042-8906 |
| Primary Part Number | 91386-05-018 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Rbc Transport Dynamics Corp Div Rbc Transport Dynamics |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY |
| Surface Finish | 125.0 MICROINCHES RIGHT END SURFACE OF BODY |
| Surface Finish | 125.0 MICROINCHES LEFT END SURFACE OF BODY |
| Surface Finish | 125.0 MICROINCHES INNER MEMBER |
| Corner Shape | SQUARE ALL CORNERS |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OUTER LAYER |
| Body Outside Diameter | 0.4381 INCHES MINIMUM AND 0.4386 INCHES MAXIMUM IN |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Body Inside Diameter | 0.3125 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE OUTER LAYER |
| Material | ALUMINUM ALLOY 2024 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 |
|---|---|
| 91386-05-018 PRIMARY | Rbc Transport Dynamics Corp Div Rbc Transport Dynamics (USA) |
| GDRDD5-018 PRIMARY | Roller Bearing Company of America, Inc. (USA) |
| ADG05A018 PRIMARY | New Hampshire Ball Bearings Inc Div Astro Division (USA) |
| Reference | Meaning |
|---|---|
| 121-1205-018 | 5/9 Secondary reference Rexnord Industries, Llc Div Aerosspace Bearing Operation |
| BJ10TF018 | 5/9 Secondary reference Timken Co Div the Timken Company |
| BJ10TF-018 | C/1 Advisory reference — outside the item-of-supply concept Rbc Aircraft Products, Inc. |
| GB528BD5D018 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
NSN 3120-01-042-8906 is a Bearing,sleeve, manufactured by Rbc Transport Dynamics Corp Div Rbc Transport Dynamics, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-042-8906 has 3 manufacturer part numbers on file: 91386-05-018 (Rbc Transport Dynamics Corp Div Rbc Transport Dynamics), GDRDD5-018 (Roller Bearing Company of America, Inc.), ADG05A018 (New Hampshire Ball Bearings Inc Div Astro Division).
Key specifications for 91386-05-018: Surface Finish: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY; Surface Finish: 125.0 MICROINCHES RIGHT END SURFACE OF BODY; Surface Finish: 125.0 MICROINCHES LEFT END SURFACE OF BODY; Surface Finish: 125.0 MICROINCHES INNER MEMBER. 12 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.