The Bearing Unit,ball, cataloged under National Stock Number 3130-01-237-9997, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Hub City, Inc. Dba Hub City Div Hub City, Inc. - a Regal-Beloit Company. Government technical data includes 27 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3130-01-237-9997 |
| Primary Part Number | PB100L-1/2 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Hub City, Inc. Dba Hub City Div Hub City, Inc. - a Regal-Beloit Company |
| Status | ACTIVE |
| Seal Type | CONTACT |
| Lubrication Material | OIL LUBRICATING |
| Lubrication Fitting Type | SELF LUBRICATEDSELF LUBRICATED |
| Assembly Overall Length | 0.969 INCHES NOMINAL IN |
| Housing Height | 2.031 INCHES NOMINAL IN |
| Mounting Slot Length | 0.438 INCHES NOMINAL0.438 INCHES NOMINAL IN |
| Internal Fit-Up Designation | STANDARD |
| Mounting Hole Type | SLOTTED |
| Rotating Element Locking Method | DIRECT |
| Seal Location | BOTH ENDS |
| Block Type | FIXED |
| Style Designator | PILLOW BLOCK, SOLID |
| Collar Location | ONE ENDONE END |
| Center to Center Distance Between Mounting Holes Along Width | 3.219 INCHES MINIMUM AND 3.219 INCHES MINIMUM AND 3.656 INCHES MAXIMUM3.656 INCHES MAXIMUM IN |
| Housing Width | 4.438 INCHES NOMINAL4.438 INCHES NOMINAL IN |
| Base Length | 1.000 INCHES NOMINAL IN |
| Alignment Type | SELF-ALIGNINGSELF-ALIGNING |
| Rolling Element Groove Quantity | 11 |
| Shaft End Type | OPEN |
| Base Thickness | 0.281 INCHES NOMINAL IN |
| Bore Diameter | 0.5000 INCHES NOMINAL0.5000 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC SEAL |
| Material | IRON MALLEABLE HOUSING |
| Material | STEEL BEARING |
| Height From Bottom of Base to Bore Centerline | 1.063 INCHES NOMINAL IN |
| Load Capability Type | RADIAL |
| Mounting Slot Width | 0.375 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 |
|---|---|
| PB100L-1/2 PRIMARY | Hub City, Inc. Dba Hub City Div Hub City, Inc. - a Regal-Beloit Company (USA) |
| Reference | Meaning |
|---|---|
| PB100L-1/2 | 5/9 Secondary reference Emerson Electric Co Browning Mfg Div |
NSN 3130-01-237-9997 is a Bearing Unit,ball, manufactured by Hub City, Inc. Dba Hub City Div Hub City, Inc. - a Regal-Beloit Company, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-237-9997 has 1 manufacturer part number on file: PB100L-1/2 (Hub City, Inc. Dba Hub City Div Hub City, Inc. - a Regal-Beloit Company).
Key specifications for PB100L-1/2: Seal Type: CONTACT; Lubrication Material: OIL LUBRICATING; Lubrication Fitting Type: SELF LUBRICATEDSELF LUBRICATED; Assembly Overall Length: 0.969 INCHES NOMINAL IN. 27 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.