The Bearing Unit,ball, cataloged under National Stock Number 3130-00-591-5091, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Emerson Electric Co Browning Mfg Div. Government technical data includes 28 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3130-00-591-5091 |
| Primary Part Number | PB201-1 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Emerson Electric Co Browning Mfg Div |
| Status | ACTIVE |
| Seal Type | CONTACT |
| Lubrication Material | GREASE |
| Assembly Overall Length | 1.6719 INCHES NOMINAL IN |
| Housing Height | 2.6875 INCHES NOMINAL IN |
| Mounting Slot Length | 0.9375 INCHES NOMINAL IN |
| Internal Fit-Up Designation | STANDARD |
| Mounting Hole Type | SLOTTED |
| Rotating Element Locking Method | ECCENTRIC CAM LOCKING COLLAR |
| Seal Location | BOTH ENDS |
| Block Type | FIXED |
| Style Designator | PILLOW BLOCK, SOLID |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE BEARING |
| Collar Location | ONE END |
| Features Provided | GROUND ROLLING ELEMENT GROOVE |
| Center to Center Distance Between Mounting Holes Along Width | 3.6250 INCHES MINIMUM AND 4.5000 INCHES MAXIMUM IN |
| Housing Width | 5.3750 INCHES NOMINAL IN |
| Base Length | 1.5000 INCHES NOMINAL IN |
| Alignment Type | SELF-ALIGNING |
| Rolling Element Groove Quantity | 1 |
| Shaft End Type | OPEN |
| Base Thickness | 0.6250 INCHES NOMINAL IN |
| Bore Diameter | 1.0000 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC SEAL |
| Material | IRON MALLEABLE HOUSING |
| Material | STEEL COMP E52100 BEARING |
| Height From Bottom of Base to Bore Centerline | 1.4375 INCHES NOMINAL IN |
| Load Capability Type | RADIAL AND THRUST |
| Mounting Slot Width | 0.3750 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 |
|---|---|
| PB201-1 PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
| Reference | Meaning |
|---|---|
| PB201X1 | 5/9 Secondary reference Emerson Electric Co Browning Mfg Div |
NSN 3130-00-591-5091 is a Bearing Unit,ball, manufactured by Emerson Electric Co Browning Mfg Div, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-00-591-5091 has 1 manufacturer part number on file: PB201-1 (Emerson Electric Co Browning Mfg Div).
Key specifications for PB201-1: Seal Type: CONTACT; Lubrication Material: GREASE; Assembly Overall Length: 1.6719 INCHES NOMINAL IN; Housing Height: 2.6875 INCHES NOMINAL IN. 28 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.