The Bearing,ball,annular, cataloged under National Stock Number 3110-00-654-9003, 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 15 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-654-9003 |
| Primary Part Number | SR156SW5X31K25V O11 |
| 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 | PRESSED |
| Internal Fit-Up Designation | STANDARD |
| Surface Finish | GROUND |
| Shield Quantity | 1 |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Overall Outside Diameter | 0.3125 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Standard Tolerance Designation | ABEC NO.5 |
| Bore Diameter | 0.1875 INCHES NOMINAL IN |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | STEEL CORROSION RESISTING RETAINER |
| Material | STEEL BALL |
| Material | STEEL CORROSION RESISTING SHIELD |
| 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 |
|---|---|
| SR156SW5X31K25V O11 PRIMARY | Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation (USA) |
| S5632CHP25L0-2 PRIMARY | Mpb Corp Div Timken Super Precision (USA) |
| Reference | Meaning |
|---|---|
| VSR156SWX1K25V0- | C/1 Advisory reference — outside the item-of-supply concept Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation |
| SR156SWX31K25V 011 | 5/9 Secondary reference Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation |
| VPSR156SWX1K3011 | C/1 Advisory reference — outside the item-of-supply concept Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation |
| VSR156SWX1K25V011 | 5/9 Secondary reference Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation |
| 742534-8 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International |
| 742534-8 | 5/9 Secondary reference Lockheed Martin Corporation Div Rms - Mitchel Field |
NSN 3110-00-654-9003 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 3110-00-654-9003 has 2 manufacturer part numbers on file: SR156SW5X31K25V O11 (Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation), S5632CHP25L0-2 (Mpb Corp Div Timken Super Precision).
Key specifications for SR156SW5X31K25V O11: Retainer Fabrication Method: PRESSED; Internal Fit-Up Designation: STANDARD; Surface Finish: GROUND; Shield Quantity: 1. 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.