The Bearing,ball,annular, cataloged under National Stock Number 3110-00-227-3191, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation. Government technical data includes 7 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 3110-00-227-3191 |
| Primary Part Number | 282740 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Internal Fit-Up Designation | STANDARD |
| Surface Finish | GROUND |
| Overall Outside Diameter | 0.3750 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Standard Tolerance Designation | ABEC NO.5 |
| 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 |
|---|---|
| 282740 PRIMARY | Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation (USA) |
| 282740 | Mpb Corp Div Timken Super Precision (USA) |
| Reference | Meaning |
|---|---|
| R2BC0X0RAG2-30-5 | C/1 Advisory reference — outside the item-of-supply concept Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation |
| A307 | 5/1 Secondary reference Mpb Corp Div Timken Super Precision |
| R2BC0X0RAG230-50 | 5/1 Secondary reference Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation |
| 282740 | 7/2 Vendor item drawing reference Honeywell International Inc. Dba Honeywell International |
NSN 3110-00-227-3191 is a Bearing,ball,annular, manufactured by Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-227-3191 has 2 manufacturer part numbers on file: 282740 (Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation), 282740 (Mpb Corp Div Timken Super Precision).
3 possible matches (shared part number, not a government interchangeability claim): 4320-00-343-6597, 5961-00-884-2201, 4730-01-283-8883. Verify interchangeability with system specifications before substitution.
Key specifications for 282740: Retainer Fabrication Method: MACHINED; Internal Fit-Up Designation: STANDARD; Surface Finish: GROUND; Overall Width: 0.1562 INCHES NOMINAL IN. 7 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.