The Bearing,sleeve, cataloged under National Stock Number 3120-01-322-3579, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-322-3579 |
| Primary Part Number | 04A061-06-050 |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
| Status | ACTIVE |
| Surface Finish | 16.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF FLANGE |
| Surface Finish | 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY |
| 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 | CHAMFERED INSIDE RIGHT CORNER |
| Corner Shape | UNDERCUT LEFT FLANGE BODY CORNER |
| Flange Outside Diameter | 0.7800 INCHES MINIMUM AND 0.8000 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.5007 INCHES MINIMUM AND 0.5013 INCHES MAXIMUM IN |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OUTSIDE DIAMETER SURFACE OF BODY |
| Style Designator | SOLID, EXTERNAL FLANGE ONE END |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OUTER LAYER |
| Material Document and Classification | MIL-B-81934 MIL SPEC SINGLE MATERIAL RESPONSE INNER LAYER |
| Body Inside Diameter | 0.3640 INCHES MINIMUM AND 0.3660 INCHES MAXIMUM IN |
| Flange Width | 0.0570 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN |
| Material | STEEL COMP 630 OUTER LAYER |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE AND PLASTIC POLYAMIDE NYLON AND PLASTIC PHENOLIC 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 |
|---|---|
| 04A061-06-050 | Kamatics Corporation (USA) |
| 04A061-06-050 PRIMARY | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| 04A061-06-050 | Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation (USA) |
| Reference | Meaning |
|---|---|
| BJBN06FC-050 | 5/9 Secondary reference Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation |
| KPD328-06-050 | 5/9 Secondary reference Kamatics Corporation |
NSN 3120-01-322-3579 is a Bearing,sleeve, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-322-3579 has 3 manufacturer part numbers on file: 04A061-06-050 (Kamatics Corporation), 04A061-06-050 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems), 04A061-06-050 (Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation).
Key specifications for 04A061-06-050: Surface Finish: 16.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF FLANGE; Surface Finish: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY; Corner Shape: SQUARE OUTSIDE RIGHT CORNER; Corner Shape: SQUARE OUTSIDE LEFT CORNER. 18 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.