The Bearing Unit,ball, cataloged under National Stock Number 3130-01-135-9565, 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 25 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-135-9565 |
| Primary Part Number | FB250X1 |
| 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 | GREASE |
| Lubrication Fitting Type | HYDRAULIC |
| Assembly Overall Length | 1.2600 INCHES NOMINAL IN |
| Internal Fit-Up Designation | STANDARD |
| Flange Thickness | 0.4375 INCHES NOMINAL IN |
| Mounting Hole Type | ROUND, UNTHREADED |
| Rotating Element Locking Method | DIRECT |
| Seal Location | BOTH ENDS |
| Block Type | FIXED |
| Style Designator | FLANGE BLOCK |
| Mounting Hole Diameter | 0.4375 INCHES NOMINAL IN |
| Features Provided | GROUND ROLLING ELEMENT GROOVE |
| Housing Width | 3.6800 INCHES NOMINAL IN |
| Alignment Type | SELF-ALIGNING |
| Rolling Element Groove Quantity | 1 |
| Bolt Circle Diameter | 2.7500 INCHES NOMINAL IN |
| Shaft End Type | OPEN |
| Bore Diameter | 1.0000 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC SEAL |
| Material | IRON MALLEABLE HOUSING |
| Material | STEEL BEARING |
| Housing Length | 0.9062 INCHES NOMINAL IN |
| Lubrication Fitting Angle From Horizontal Centerline | 90.0 DEGREES NOMINAL |
| 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 |
| Part Number | Manufacturer |
|---|---|
| FB250X1 PRIMARY | Hub City, Inc. Dba Hub City Div Hub City, Inc. - a Regal-Beloit Company (USA) |
| SC-4 124103 PRIMARY | Reliance Electric Company Dba Reliance & Dodge Brands (USA) |
| Reference | Meaning |
|---|---|
| M300007 | 5/9 Secondary reference Mgr Equipment Corp |
| FB-250-1 | 5/9 Secondary reference U.S. Government activity |
NSN 3130-01-135-9565 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 3130-01-135-9565 has 2 manufacturer part numbers on file: FB250X1 (Hub City, Inc. Dba Hub City Div Hub City, Inc. - a Regal-Beloit Company), SC-4 124103 (Reliance Electric Company Dba Reliance & Dodge Brands).
Key specifications for FB250X1: Seal Type: CONTACT; Lubrication Material: GREASE; Lubrication Fitting Type: HYDRAULIC; Assembly Overall Length: 1.2600 INCHES NOMINAL IN. 25 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.