The Bearing,ball,annular, cataloged under National Stock Number 3110-00-346-7148, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Rtx Corporation Div Pratt & Whitney. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 14 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-346-7148 |
| Primary Part Number | 4058058 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Rtx Corporation Div Pratt & Whitney |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Internal Clearance | 0.0005 INCHES MINIMUM RADIAL AND 0.0011 INCHES MAXIMUM RADIAL IN |
| Surface Finish | GROUND |
| Precious Material | SILVER |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material Document and Classification | PWA 725,97497 MFR REF 1ST MATERIAL RESPONSE BALL |
| Material Document and Classification | PWA 725,97497 MFR REF 2ND MATERIAL RESPONSE INNER RING |
| Material Document and Classification | PWA 725,97497 MFR REF 3RD MATERIAL RESPONSE OUTER RING |
| Overall Outside Diameter | 28.00 MILLIMETERS NOMINAL MM |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Standard Tolerance Designation | ABEC NO.1 |
| Bore Diameter | 12.00 MILLIMETERS NOMINAL MM |
| Material | STEEL COMP 4340 RETAINER |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | STEEL BALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 4001297 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4058058 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| 4001297 | Skf Usa Inc. (USA) |
| 4058058 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4065092 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| 4001299 | Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation (USA) |
| 4001299 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| 4032007 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4001297 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| 4001299 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 4032007 PRIMARY | Rtx Corporation Div Pratt & Whitney (USA) |
| 4058058 | Mpb Corporation Dba Mpb Corp (USA) |
| 4001297 | Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation (USA) |
| 4001297 | Mpb Corporation Dba Mpb Corp (USA) |
| Reference | Meaning |
|---|---|
| 4001298 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 3110-00-346-7148 is a Bearing,ball,annular, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-346-7148 has 14 manufacturer part numbers on file: 4001297 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4058058 (Rtx Corporation Div Pratt & Whitney), 4001297 (Skf Usa Inc.), 4058058 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 4065092 (Rtx Corporation Div Pratt & Whitney) and 9 more.
1 possible match (shared part number, not a government interchangeability claim): 3120-01-508-5311. Verify interchangeability with system specifications before substitution.
Key specifications for 4058058: Retainer Fabrication Method: MACHINED; Internal Clearance: 0.0005 INCHES MINIMUM RADIAL AND 0.0011 INCHES MAXIMUM RADIAL IN; Surface Finish: GROUND; Precious Material: SILVER. 17 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.