The Bearing Unit,ball, cataloged under National Stock Number 3130-01-400-3108, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Altra Industrial Motion Corp.. Government technical data includes 28 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3130-01-400-3108 |
| Primary Part Number | 12USL-2-7/16 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Altra Industrial Motion Corp. |
| Status | ACTIVE |
| Seal Type | CONTACT |
| Lubrication Fitting Type | HYDRAULIC |
| Assembly Overall Length | 3.0938 INCHES NOMINAL IN |
| Housing Height | 5.4375 INCHES NOMINAL IN |
| Mounting Slot Length | 1.1562 INCHES NOMINAL IN |
| Internal Fit-Up Designation | STANDARD |
| Mounting Hole Type | SLOTTED |
| Rotating Element Locking Method | ECCENTRIC CAM LOCKING COLLAR |
| Seal Location | BOTH ENDS |
| Block Type | FIXED |
| Style Designator | PILLOW BLOCK, SOLID |
| Collar Location | ONE END |
| Features Provided | GROUND ROLLING ELEMENT GROOVE |
| Center to Center Distance Between Mounting Holes Along Width | 6.9375 INCHES MINIMUM AND 7.8750 INCHES MAXIMUM IN |
| Housing Width | 9.6250 INCHES NOMINAL IN |
| Base Length | 2.5000 INCHES NOMINAL IN |
| Alignment Type | SELF-ALIGNING |
| Rolling Element Groove Quantity | 1 |
| Shaft End Type | OPEN |
| Base Thickness | 1.6250 INCHES NOMINAL IN |
| Bore Diameter | 2.4375 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC SEAL |
| Material | IRON CAST HOUSING |
| Material | STEEL BEARING |
| Height From Bottom of Base to Bore Centerline | 2.6875 INCHES NOMINAL IN |
| Lubrication Fitting Angle From Horizontal Centerline | 45.0 DEGREES NOMINAL |
| Load Capability Type | RADIAL AND THRUST |
| Mounting Slot Width | 0.6875 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 |
|---|---|
| 12USL-2-7/16 PRIMARY | Altra Industrial Motion Corp. (USA) |
| Reference | Meaning |
|---|---|
| 12USL-2-7/16 | 5/9 Secondary reference Incom Intl Inc |
NSN 3130-01-400-3108 is a Bearing Unit,ball, manufactured by Altra Industrial Motion Corp., classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-400-3108 has 1 manufacturer part number on file: 12USL-2-7/16 (Altra Industrial Motion Corp.).
Key specifications for 12USL-2-7/16: Seal Type: CONTACT; Lubrication Fitting Type: HYDRAULIC; Assembly Overall Length: 3.0938 INCHES NOMINAL IN; Housing Height: 5.4375 INCHES NOMINAL IN. 28 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.