The Bearing Unit,ball, cataloged under National Stock Number 3130-01-649-7991, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Mcmaster-Carr Supply Company. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-649-7991 |
| Primary Part Number | 6244K67 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Mcmaster-Carr Supply Company |
| Status | ACTIVE |
| Housing Height | 5.515 INCHES NOMINAL IN |
| Rotating Element Locking Method | ECCENTRIC CAM LOCKING COLLAR |
| Block Type | FIXED |
| Style Designator | PILLOW BLOCK, SOLID |
| Center to Center Distance Between Mounting Holes Along Width | 7.453 INCHES NOMINAL IN |
| Housing Width | 9.640 INCHES NOMINAL IN |
| Alignment Type | RIGID |
| Rolling Element Groove Quantity | 1 |
| Bore Diameter | 2.4375 INCHES NOMINAL IN |
| Material | IRON CAST HOUSING |
| Material | STEEL BEARING |
| Housing Length | 2.562 INCHES NOMINAL IN |
| Height From Bottom of Base to Bore Centerline | 2.750 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 |
|---|---|
| 6244K67 PRIMARY | Mcmaster-Carr Supply Company (USA) |
| 995-8556055 ITEM NO 6 | Naval Sea Systems Command (USA) |
NSN 3130-01-649-7991 is a Bearing Unit,ball, manufactured by Mcmaster-Carr Supply Company, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-649-7991 has 2 manufacturer part numbers on file: 6244K67 (Mcmaster-Carr Supply Company), 995-8556055 ITEM NO 6 (Naval Sea Systems Command).
Key specifications for 6244K67: Housing Height: 5.515 INCHES NOMINAL IN; Rotating Element Locking Method: ECCENTRIC CAM LOCKING COLLAR; Block Type: FIXED; Style Designator: PILLOW BLOCK, SOLID. 13 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.