The Bearing Unit,roller, cataloged under National Stock Number 3130-01-280-6978, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-280-6978 |
| Item Name | Bearing Unit,roller |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Status | ACTIVE |
| Seal Type | LABYRINTH |
| Lubrication Fitting Type | HYDRAULIC |
| Internal Fit-Up Designation | STANDARD |
| Flange Thickness | 1.3750 INCHES NOMINAL IN |
| Mounting Hole Type | ROUND, UNTHREADED |
| Rotating Element Locking Method | ECCENTRIC CAM LOCKING COLLAR |
| Seal Location | BOTH ENDS |
| Block Type | FIXED |
| Style Designator | FLANGE BLOCK |
| Mounting Hole Diameter | 0.7500 INCHES NOMINAL IN |
| Collar Location | ONE END |
| Overall Outside Diameter | 11.4375 INCHES NOMINAL IN |
| Features Provided | GROUND ROLLING ELEMENT GROOVE |
| Alignment Type | SELF-ALIGNING |
| Rolling Element Groove Quantity | 2 |
| Bolt Circle Diameter | 9.5000 INCHES NOMINAL IN |
| Shaft End Type | OPEN |
| Bore Diameter | 3.4375 INCHES NOMINAL IN |
| Material | IRON CAST HOUSING |
| Material | STEEL SEAL |
| Housing Length | 4.5625 INCHES NOMINAL IN |
| Housing Diameter | 8.5625 INCHES NOMINAL IN |
| Lubrication Fitting Angle From Horizontal Centerline | 45.0 DEGREES NOMINAL |
| Load Capability Type | RADIAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| FB22455H | 5/9 Secondary reference Link-Belt Cranes, L.p., Lllp |
| FB22455H | 3/9 Design control — primary reference Rexnord Industries, Llc Div Link-Belt Bearing Operation |
NSN 3130-01-280-6978 is a Bearing Unit,roller, classified under FSC 3130, Bearings, Mounted. Status: active.
Key specifications for 3130-01-280-6978: Seal Type: LABYRINTH; Lubrication Fitting Type: HYDRAULIC; Internal Fit-Up Designation: STANDARD; Flange Thickness: 1.3750 INCHES NOMINAL IN. 24 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.