The Bearing Unit,ball, cataloged under National Stock Number 3130-00-498-7971, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Leonardo Spa Helicopters Division - Production Site. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3130-00-498-7971 |
| Primary Part Number | 212-060-718-1 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Leonardo Spa Helicopters Division - Production Site |
| Status | ACTIVE |
| Seal Type | CONTACT |
| 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 |
| Alignment Type | SELF-ALIGNING |
| Rolling Element Groove Quantity | 1 |
| Shaft End Type | OPEN |
| Bore Diameter | 0.2500 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC SEAL |
| Material | ALUMINUM ALLOY HOUSING |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 212-060-718-1 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| Reference | Meaning |
|---|---|
| 212-060-718-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3130-00-498-7971 is a Bearing Unit,ball, manufactured by Leonardo Spa Helicopters Division - Production Site, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-00-498-7971 has 1 manufacturer part number on file: 212-060-718-1 (Leonardo Spa Helicopters Division - Production Site).
Key specifications for 212-060-718-1: Seal Type: CONTACT; Internal Fit-Up Designation: STANDARD; Mounting Hole Type: ROUND, UNTHREADED; Seal Location: BOTH ENDS. 14 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.