The Bearing Unit,ball, cataloged under National Stock Number 3130-01-144-8961, 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24 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3130-01-144-8961 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Status | ACTIVE |
| Seal Type | CONTACT |
| Lubrication Material | OIL |
| Lubrication Fitting Type | SELF LUBRICATED |
| Assembly Overall Length | 3.2500 INCHES NOMINAL IN |
| Housing Height | 2.1800 INCHES NOMINAL IN |
| Internal Fit-Up Designation | STANDARD |
| Mounting Hole Type | ROUND, UNTHREADED |
| Seal Location | BOTH ENDS |
| Block Type | FIXED |
| Mounting Hole Diameter | 0.2180 INCHES NOMINAL IN |
| Features Provided | GROUND ROLLING ELEMENT GROOVE |
| Center to Center Distance Between Mounting Holes Along Width | 2.8750 INCHES NOMINAL IN |
| Housing Width | 3.2500 INCHES NOMINAL IN |
| Center to Center Distance Between Mounting Holes Along Length | 1.7500 INCHES NOMINAL IN |
| Alignment Type | SELF-ALIGNING |
| Shaft End Type | OPEN |
| Base Thickness | 0.3800 INCHES NOMINAL IN |
| Bore Diameter | 0.9995 INCHES MINIMUM AND 1.0005 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 6061 HOUSING |
| Material | RUBBER SYNTHETIC SEAL |
| Material | STEEL BEARING |
| Housing Length | 2.8200 INCHES NOMINAL IN |
| Height From Bottom of Base to Bore Centerline | 1.1870 INCHES NOMINAL IN |
| Load Capability Type | RADIAL AND THRUST |
| 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 |
|---|---|
| SPB-16 | 3/2 Design control — primary reference U.S. Government activity |
| 11501097-3 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
NSN 3130-01-144-8961 is a Bearing Unit,ball, classified under FSC 3130, Bearings, Mounted. Status: active.
Key specifications for 3130-01-144-8961: Seal Type: CONTACT; Lubrication Material: OIL; Lubrication Fitting Type: SELF LUBRICATED; Assembly Overall Length: 3.2500 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.