The Bearing Unit,ball, cataloged under National Stock Number 3130-01-678-4047, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Thomson Industries Inc. Government technical data includes 13 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 | 3130-01-678-4047 |
| Primary Part Number | 7833407 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Thomson Industries Inc |
| Status | ACTIVE |
| Assembly Overall Length | 40.0 INCHES NOMINAL IN |
| Flange Thickness | 15.0 MILLIMETERS NOMINAL MM |
| Mounting Hole Type | ROUND, THREADED, COUNTERBORED |
| Thread Pitch in Millimeters | 1.0 |
| Style Designator | FLANGE BLOCK |
| Counterbore Depth | 6.0 MILLIMETERS NOMINAL MM |
| Nominal Thread Size | 15.0 MILLIMETERS MM |
| Counterbore Diameter | 5.5 MILLIMETERS MINIMUM AND 9.5 MILLIMETERS MAXIMUM MM |
| Housing Width | 52.0 MILLIMETERS NOMINAL MM |
| Bore Diameter | 15.0 MILLIMETERS NOMINAL MM |
| Housing Length | 38.0 MILLIMETERS NOMINAL MM |
| Thread Series Designator | M |
| Center to Center Distance Between Mounting Holes Along Side of a Square | 50.0 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 7833407 PRIMARY | Thomson Industries Inc (USA) |
NSN 3130-01-678-4047 is a Bearing Unit,ball, manufactured by Thomson Industries Inc, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-678-4047 has 1 manufacturer part number on file: 7833407 (Thomson Industries Inc).
Key specifications for 7833407: Assembly Overall Length: 40.0 INCHES NOMINAL IN; Flange Thickness: 15.0 MILLIMETERS NOMINAL MM; Mounting Hole Type: ROUND, THREADED, COUNTERBORED; Thread Pitch in Millimeters: 1.0. 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.