The Bearing,ball,annular, cataloged under National Stock Number 3110-00-438-0201, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Skf Usa Inc.. Government technical data includes 15 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-438-0201 |
| Primary Part Number | 101KSF |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Skf Usa Inc. |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Bearing Seal Type | LIPS TURNED INWARDLY |
| Internal Fit-Up Designation | STANDARD |
| Surface Finish | GROUND |
| Shield Quantity | 1 |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Overall Outside Diameter | 1.1020 INCHES MINIMUM AND 1.1024 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Standard Tolerance Designation | ABEC NO.1 |
| Bore Diameter | 0.4721 INCHES MINIMUM AND 0.4724 INCHES MAXIMUM IN |
| Material | STEEL COMP E52100 BALL |
| Material | COPPER ALLOY RETAINER |
| Material | STEEL COMP E52100 OUTER RING |
| Material | STEEL COMP E52100 INNER RING |
| 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 |
|---|---|
| 101KSF PRIMARY | Skf Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| 73L01 | 5/9 Secondary reference General Motors Corp Delco Moraine Ndh Div |
| 6101P | 5/9 Secondary reference Fag Bearings Corporation |
| 42093D92 | 1/2 Source control — Government-approved source U.S. Government activity |
| 9101KD | 5/9 Secondary reference Timken Co Div the Timken Company |
NSN 3110-00-438-0201 is a Bearing,ball,annular, manufactured by Skf Usa Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-438-0201 has 1 manufacturer part number on file: 101KSF (Skf Usa Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-562-7479, 4730-01-679-4678. Verify interchangeability with system specifications before substitution.
Key specifications for 101KSF: Retainer Fabrication Method: PRESSED; Bearing Seal Type: LIPS TURNED INWARDLY; Internal Fit-Up Designation: STANDARD; Surface Finish: GROUND. 15 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.