The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-01-045-2780, 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 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-045-2780 |
| Primary Part Number | KSC112540V |
| Item Name | Bearing,plain,self-Aligning |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Kamatics Corporation |
| Status | ACTIVE |
| Inner Member Width | 2.1820 INCHES MINIMUM AND 2.1870 INCHES MAXIMUM IN |
| Hardness Rating | 28.0 ROCKWELL C NOMINAL INNER MEMBER |
| Hardness Rating | 37.0 ROCKWELL C NOMINAL OUTER RACE MEMBER |
| Outer Member Width | 1.8750 INCHES MINIMUM AND 1.8850 INCHES MAXIMUM IN |
| Style Designator | WITH INSERT AND/OR LINER |
| Static Radial Load Rating | 172400 POUNDS LBS |
| Bore Diameter | 2.4995 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM IN |
| Material | PLASTIC INNER LAYER |
| Material | STEEL COMP 630 OUTER RACE MEMBER |
| Material | TITANIUM ALLOY UNS R56400 INNER MEMBER |
| Outer Member Outside Diameter | 3.9370 INCHES MINIMUM AND 3.9375 INCHES MAXIMUM IN |
| 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 |
|---|---|
| KSC112540V PRIMARY | Kamatics Corporation (USA) |
| Reference | Meaning |
|---|---|
| KSC112540P | 5/9 Secondary reference Kamatics Corporation |
NSN 3120-01-045-2780 is a Bearing,plain,self-Aligning, manufactured by Kamatics Corporation, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-045-2780 has 1 manufacturer part number on file: KSC112540V (Kamatics Corporation).
Key specifications for KSC112540V: Inner Member Width: 2.1820 INCHES MINIMUM AND 2.1870 INCHES MAXIMUM IN; Hardness Rating: 28.0 ROCKWELL C NOMINAL INNER MEMBER; Hardness Rating: 37.0 ROCKWELL C NOMINAL OUTER RACE MEMBER; Outer Member Width: 1.8750 INCHES MINIMUM AND 1.8850 INCHES MAXIMUM IN. 11 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.