The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-01-513-5083, 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 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-513-5083 |
| Primary Part Number | KR4-CNGBK |
| Item Name | Bearing,plain,self-Aligning |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | Kamatics Corporation |
| Status | ACTIVE |
| Inner Member Width | 0.3410 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN |
| Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER |
| Hardness Rating | 43.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM INNER MEMBER |
| Outer Member Width | 0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN |
| Style Designator | WITH INSERT AND/OR LINER WITH STAKING GROOVE |
| Lubrication Feature | SELF-LUBRICATING LINER RACE LINER |
| Static Radial Load Rating | 6040 POUNDS LBS |
| Bore Diameter | 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE RACE LINER |
| Material | STEEL COMP XM-13 INNER MEMBER |
| Material | STEEL COMP 630 OUTER RACE MEMBER |
| Outer Member Outside Diameter | 0.6557 INCHES MINIMUM AND 0.6562 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 |
|---|---|
| KR4-CNGBK PRIMARY | Kamatics Corporation (USA) |
NSN 3120-01-513-5083 is a Bearing,plain,self-Aligning, manufactured by Kamatics Corporation, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-513-5083 has 1 manufacturer part number on file: KR4-CNGBK (Kamatics Corporation).
Key specifications for KR4-CNGBK: Inner Member Width: 0.3410 INCHES MINIMUM AND 0.3430 INCHES MAXIMUM IN; Hardness Rating: 28.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER; Hardness Rating: 43.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM INNER MEMBER; Outer Member Width: 0.2450 INCHES MINIMUM AND 0.2550 INCHES MAXIMUM IN. 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.