The Bearing Unit,ball, cataloged under National Stock Number 3130-01-623-5648, is classified within Federal Supply Class 3130 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Altra Industrial Motion Corp.. Government technical data includes 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-623-5648 |
| Primary Part Number | 64578 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — No Item Name Available |
| Manufacturer | Altra Industrial Motion Corp. |
| Status | ACTIVE |
| Center to Center Distance Between Mounting Holes Along Width | 6.0000 INCHES MINIMUM AND 7.5000 INCHES MAXIMUM IN |
| Internal Fit-Up Designation | STANDARD |
| Height From Bottom of Base to Bore Centerline | 2.2500 INCHES NOMINAL IN |
| Shaft End Type | OPEN |
| Assembly Overall Length | 8.8750 INCHES NOMINAL IN |
| Housing Height | 5.0625 INCHES NOMINAL IN |
| Mounting Hole Type | ROUND, UNTHREADED |
| Features Provided | GROUND ROLLING ELEMENT GROOVE |
| Load Capability Type | RADIAL |
| Housing Width | 2.7500 INCHES NOMINAL IN |
| Housing Length | 8.8750 INCHES NOMINAL IN |
| Block Type | FIXED |
| Bore Diameter | 2.0000 INCHES NOMINAL IN |
| Seal Location | BOTH ENDS |
| Rolling Element Groove Quantity | 1 |
| Base Length | 2.2500 INCHES NOMINAL IN |
| Rotating Element Locking Method | SETSCREW LOCKING COLLAR |
| Collar Location | ONE END |
| Seal Type | CONTACT |
| Mounting Hole Diameter | 0.6875 INCHES NOMINAL IN |
| Base Thickness | 0.8750 INCHES NOMINAL IN |
| Alignment Type | SELF-ALIGNING |
| Lubrication Material | GREASE |
| Material | STEEL OVERALL |
| Style Designator | PILLOW BLOCK, SEPARABLE W/O INNERLINER |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 3130-01-623-5648 is a Bearing Unit,ball, manufactured by Altra Industrial Motion Corp., classified under FSC 3130 (No Item Name Available). Status: active.
NSN 3130-01-623-5648 has 2 cross-referenced part numbers: 64578 (Altra Industrial Motion Corp.), MB-2 (Altra Industrial Motion Corp.).
There are 12 known substitutes for 3130-01-623-5648: 4730-00-035-7609, 6115-00-329-3581, 2030-00-394-9795 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 64578: Center to Center Distance Between Mounting Holes Along Width: 6.0000 INCHES MINIMUM AND 7.5000 INCHES MAXIMUM IN; Internal Fit-Up Designation: STANDARD; Height From Bottom of Base to Bore Centerline: 2.2500 INCHES NOMINAL IN; Shaft End Type: OPEN. 27 total characteristics are documented in the Federal Logistics Information System.