The Bearing,ball,duplex, cataloged under National Stock Number 3110-01-547-7947, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Skf Usa Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Bearing,ball,duplex |
| FSC / FSG | 3110 — Bearings, Antifriction, Unmounted (FSG 31) |
| Manufacturers | Skf Usa Inc. (CAGE 38443) |
| Parameter | Value |
|---|---|
| NSN | 3110-01-547-7947 |
| Primary Part Number | 42555-170 |
| Item Name | Bearing,ball,duplex |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Skf Usa Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 42555-170 | Skf Usa Inc. (USA) |
| 203-RDF | Skf Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| 34HADR203-211 | 5/9 Secondary reference Mpb Corporation Dba Mpb Corp |
| SSMER-203SD613DF | 5/9 Secondary reference U.S. Government activity |
| 42555-170 | 3/2 Design control — primary reference U.S. Government activity |
| 42555-170 | 5/2 Secondary reference U.S. Government activity |
NSN 3110-01-547-7947 is a Bearing,ball,duplex, manufactured by Skf Usa Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-547-7947 has 2 manufacturer part numbers on file: 42555-170 (Skf Usa Inc.), 203-RDF (Skf Usa Inc.).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 3110-01-547-7947 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.