The Bearing Unit,ball, cataloged under National Stock Number 3130-00-227-4063, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Morse Industrial Corp Sealmaster Bearing Div Sub of Emerson Electric Co. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-00-227-4063 |
| Primary Part Number | SP-28 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Morse Industrial Corp Sealmaster Bearing Div Sub of Emerson Electric Co |
| Status | ACTIVE |
| Seal Type | LABYRINTH |
| Lubrication Material | GREASE |
| Lubrication Fitting Type | HYDRAULIC |
| Assembly Overall Length | 2.3750 INCHES NOMINAL IN |
| Housing Height | 4.6250 INCHES NOMINAL IN |
| Mounting Slot Length | 1.2500 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 |
| Features Provided | GROUND ROLLING ELEMENT GROOVE |
| Center to Center Distance Between Mounting Holes Along Width | 6.5000 INCHES NOMINAL IN |
| Housing Width | 8.7500 INCHES NOMINAL IN |
| Base Length | 2.3750 INCHES NOMINAL IN |
| Alignment Type | SELF-ALIGNING |
| Rolling Element Groove Quantity | 1 |
| Shaft End Type | OPEN |
| Base Thickness | 0.7500 INCHES NOMINAL IN |
| Bore Diameter | 1.7500 INCHES NOMINAL IN |
| Material | IRON CAST HOUSING |
| Material | STEEL SEAL |
| Height From Bottom of Base to Bore Centerline | 2.3750 INCHES NOMINAL IN |
| Lubrication Fitting Angle From Horizontal Centerline | 90.0 DEGREES NOMINAL |
| Load Capability Type | RADIAL |
| Mounting Slot Width | 0.7500 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 |
|---|---|
| SP-28 PRIMARY | Morse Industrial Corp Sealmaster Bearing Div Sub of Emerson Electric Co (USA) |
| Reference | Meaning |
|---|---|
| SP28 | 5/9 Secondary reference Stephens-Adamson Inc a Sub of Allis-Chalmers Corp |
| 71694-3-8 | 3/9 Design control — primary reference Sedgwick Machine Works Inc |
NSN 3130-00-227-4063 is a Bearing Unit,ball, manufactured by Morse Industrial Corp Sealmaster Bearing Div Sub of Emerson Electric Co, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-00-227-4063 has 1 manufacturer part number on file: SP-28 (Morse Industrial Corp Sealmaster Bearing Div Sub of Emerson Electric Co).
Key specifications for SP-28: Seal Type: LABYRINTH; Lubrication Material: GREASE; Lubrication Fitting Type: HYDRAULIC; Assembly Overall Length: 2.3750 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.