The Bearing Unit,ball, cataloged under National Stock Number 3130-01-668-7671, 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 8 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 | 3130-01-668-7671 |
| Primary Part Number | PS2-1/2 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Altra Industrial Motion Corp. |
| Status | ACTIVE |
| Housing Height | 2.3125 INCHES NOMINAL IN |
| Style Designator | PILLOW BLOCK, SEPARABLE WITH INNERLINER |
| Center to Center Distance Between Mounting Holes Along Width | 2.5000 INCHES NOMINAL IN |
| Housing Width | 3.1875 INCHES NOMINAL IN |
| Base Length | 0.5630 INCHES NOMINAL IN |
| Base Thickness | 0.1500 INCHES NOMINAL IN |
| Bore Diameter | 0.5000 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| PS2-1/2 PRIMARY | Altra Industrial Motion Corp. (USA) |
NSN 3130-01-668-7671 is a Bearing Unit,ball, manufactured by Altra Industrial Motion Corp., classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-668-7671 has 1 manufacturer part number on file: PS2-1/2 (Altra Industrial Motion Corp.).
Key specifications for PS2-1/2: Housing Height: 2.3125 INCHES NOMINAL IN; Style Designator: PILLOW BLOCK, SEPARABLE WITH INNERLINER; Center to Center Distance Between Mounting Holes Along Width: 2.5000 INCHES NOMINAL IN; Housing Width: 3.1875 INCHES NOMINAL IN. 8 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.