The Bearing Unit,ball, cataloged under National Stock Number 3130-00-288-5331, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Universal Engineering Corp.. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3130-00-288-5331 |
| Primary Part Number | 711-A22 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Universal Engineering Corp. |
| Status | ACTIVE |
| Seal Type | LABYRINTH |
| Lubrication Fitting Type | PIPE PLUG |
| Mounting Slot Length | 0.9375 INCHES NOMINAL IN |
| Internal Fit-Up Designation | STANDARD |
| Mounting Hole Type | SLOTTED |
| Seal Location | BOTH ENDS |
| Block Type | FIXED |
| Features Provided | GROUND ROLLING ELEMENT GROOVE |
| Alignment Type | SELF-ALIGNING |
| Rolling Element Groove Quantity | 1 |
| Shaft End Type | OPEN |
| Bore Diameter | 1.9375 INCHES NOMINAL IN |
| Material | IRON CAST HOUSING |
| Material | STEEL SEAL |
| Lubrication Fitting Angle From Horizontal Centerline | 45.0 DEGREES NOMINAL |
| Mounting Slot Width | 0.6875 INCHES NOMINAL 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 |
|---|---|
| 711-A22 PRIMARY | Universal Engineering Corp. (USA) |
| Reference | Meaning |
|---|---|
| B711A22 | 5/9 Secondary reference Universal Engineering Corp. |
NSN 3130-00-288-5331 is a Bearing Unit,ball, manufactured by Universal Engineering Corp., classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-00-288-5331 has 1 manufacturer part number on file: 711-A22 (Universal Engineering Corp.).
Key specifications for 711-A22: Seal Type: LABYRINTH; Lubrication Fitting Type: PIPE PLUG; Mounting Slot Length: 0.9375 INCHES NOMINAL IN; Internal Fit-Up Designation: STANDARD. 16 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.