The Bearing Unit,ball, cataloged under National Stock Number 3130-01-331-0579, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-331-0579 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Status | ACTIVE |
| Lubrication Fitting Type | WICK |
| Assembly Overall Length | 1.6875 INCHES NOMINAL IN |
| Housing Height | 3.6250 INCHES NOMINAL IN |
| Internal Fit-Up Designation | STANDARD |
| Mounting Hole Type | ROUND, UNTHREADED |
| Rotating Element Locking Method | DIRECT |
| Block Type | FIXED |
| Style Designator | PILLOW BLOCK, SOLID |
| Mounting Hole Diameter | 0.5000 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Holes Along Width | 4.6250 INCHES MINIMUM AND 5.3750 INCHES MAXIMUM IN |
| Housing Width | 6.7500 INCHES NOMINAL IN |
| Base Length | 1.7500 INCHES NOMINAL IN |
| Alignment Type | RIGID |
| Rolling Element Groove Quantity | 1 |
| Base Thickness | 0.6562 INCHES NOMINAL IN |
| Bore Diameter | 1.3750 INCHES NOMINAL IN |
| Material | IRON MALLEABLE OVERALL |
| Height From Bottom of Base to Bore Centerline | 1.8125 INCHES NOMINAL IN |
| 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 |
|---|---|
| VPLS-222 | 3/9 Design control — primary reference Dillon Supply Company |
NSN 3130-01-331-0579 is a Bearing Unit,ball, classified under FSC 3130, Bearings, Mounted. Status: active.
Key specifications for 3130-01-331-0579: Lubrication Fitting Type: WICK; Assembly Overall Length: 1.6875 INCHES NOMINAL IN; Housing Height: 3.6250 INCHES NOMINAL IN; Internal Fit-Up Designation: STANDARD. 19 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.