The Bearing Unit,ball, cataloged under National Stock Number 3130-01-213-4375, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Timken Co Div the Timken Company. Government technical data includes 30 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-213-4375 |
| Primary Part Number | GRFD1 15/16 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Timken Co Div the Timken Company |
| Status | ACTIVE |
| Seal Type | CONTACT |
| Lubrication Material | GREASE |
| Lubrication Fitting Type | HYDRAULIC |
| Assembly Overall Length | 2.469 INCHES NOMINAL IN |
| Housing Height | 5.298 INCHES NOMINAL IN |
| Internal Fit-Up Designation | STANDARD |
| Flange Thickness | 0.625 INCHES NOMINAL IN |
| Mounting Hole Type | SQUARE |
| Rotating Element Locking Method | ECCENTRIC CAM LOCKING COLLAR |
| Seal Location | BOTH ENDS |
| Block Type | FIXED |
| Style Designator | FLANGE BLOCK |
| Collar Location | ONE END |
| Overall Outside Diameter | 6.125 INCHES NOMINAL IN |
| Features Provided | GROUND ROLLING ELEMENT GROOVE |
| Mounting Hole Width | 0.526 INCHES MINIMUM AND 0.536 INCHES MAXIMUM IN |
| Alignment Type | SELF-ALIGNING |
| Rolling Element Groove Quantity | 2 |
| Bolt Circle Diameter | 5.000 INCHES NOMINAL IN |
| Shaft End Type | OPEN |
| Bore Diameter | 1.9375 INCHES NOMINAL IN |
| Material | IRON MALLEABLE HOUSING |
| Material | RUBBER SYNTHETIC AND STEEL SEAL |
| Material | STEEL BEARING |
| Material | STEEL COLLAR |
| Housing Length | 1.1250 INCHES NOMINAL IN |
| Height From Bottom of Base to Bore Centerline | 3.063 INCHES NOMINAL IN |
| Housing Diameter | 4.469 INCHES NOMINAL IN |
| Lubrication Fitting Angle From Horizontal Centerline | 30.0 DEGREES NOMINAL |
| 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 |
|---|---|
| GRFD1 15/16 PRIMARY | Timken Co Div the Timken Company (USA) |
NSN 3130-01-213-4375 is a Bearing Unit,ball, manufactured by Timken Co Div the Timken Company, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-213-4375 has 1 manufacturer part number on file: GRFD1 15/16 (Timken Co Div the Timken Company).
Key specifications for GRFD1 15/16: Seal Type: CONTACT; Lubrication Material: GREASE; Lubrication Fitting Type: HYDRAULIC; Assembly Overall Length: 2.469 INCHES NOMINAL IN. 30 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.