The Bearing,sleeve, cataloged under National Stock Number 3120-01-352-2780, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is Kamatics Corporation. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3120-01-352-2780 |
| Primary Part Number | KRJ7SB-012S |
| Item Name | Bearing,sleeve |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Kamatics Corporation |
| Status | ACTIVE |
| Surface Finish | 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY |
| Corner Shape | SQUARE ALL CORNERS |
| Body Outside Diameter | 0.5633 INCHES MINIMUM AND 0.5638 INCHES MAXIMUM IN |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.4380 INCHES MINIMUM AND 0.4390 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 | N |
| Part Number | Manufacturer |
|---|---|
| KRJ7SB-012S PRIMARY | Kamatics Corporation (USA) |
| 04A075-07C012 | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
| 06-282-07-012 | Rbc Transport Dynamics Corp Div Rbc Transport Dynamics (USA) |
| 04A075-07C12 | Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA) |
| AHJ07C(L1)012 | New Hampshire Ball Bearings Inc Div Astro Division (USA) |
| AHJ07C012 | New Hampshire Ball Bearings Inc Div Precision Division (USA) |
| Reference | Meaning |
|---|---|
| KDJ07C012-341 | 5/2 Secondary reference U.S. Government activity |
| MBSS-7-012 | 5/2 Secondary reference U.S. Government activity |
NSN 3120-01-352-2780 is a Bearing,sleeve, manufactured by Kamatics Corporation, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-352-2780 has 6 manufacturer part numbers on file: KRJ7SB-012S (Kamatics Corporation), 04A075-07C012 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems), 06-282-07-012 (Rbc Transport Dynamics Corp Div Rbc Transport Dynamics), 04A075-07C12 (Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems), AHJ07C(L1)012 (New Hampshire Ball Bearings Inc Div Astro Division) and 1 more.
Key specifications for KRJ7SB-012S: Surface Finish: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY; Corner Shape: SQUARE ALL CORNERS; Body Outside Diameter: 0.5633 INCHES MINIMUM AND 0.5638 INCHES MAXIMUM IN; Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES. 7 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.