The Bearing,ball,duplex, cataloged under National Stock Number 3110-01-080-8533, 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 13 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 3110-01-080-8533 |
| Primary Part Number | 578R953H03 |
| Item Name | Bearing,ball,duplex |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation |
| Status | ACTIVE |
| Surface Finish | GROUND |
| Style Designator | COUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING |
| Material Document and Classification | UNABLE TO DECODE |
| Overall Outside Diameter | 0.7428 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| Features Provided | ALIGNING RING |
| Load Direction | ANGULAR |
| Bore Diameter | 0.4998 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | GREASE LUBRICATION |
| Material | STEEL BALL |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SPACER |
| Lubrication Material Document and Classification | DOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE |
| 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 |
|---|---|
| 578R953H03 PRIMARY | Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation (USA) |
| 578R953H03 PRIMARY | Mpb Corp Div Timken Super Precision (USA) |
| Reference | Meaning |
|---|---|
| 578R953H03 | 3/2 Design control — primary reference U.S. Government activity |
| SR824PT8C21K38-2 | 5/1 Secondary reference New Hampshire Ball Bearings Inc Div Precision Division |
| SR824PT8C21K38-2 | 5/1 Secondary reference U.S. Government activity |
| 578R953H03 | 5/9 Secondary reference Mpb Corporation Dba Mpb Corp |
| 3TKL008-12-114 | 5/1 Secondary reference Mpb Corporation Dba Mpb Corp |
| 578R953H03 | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 3110-01-080-8533 is a Bearing,ball,duplex, manufactured by Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-080-8533 has 2 manufacturer part numbers on file: 578R953H03 (Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation), 578R953H03 (Mpb Corp Div Timken Super Precision).
Key specifications for 578R953H03: Surface Finish: GROUND; Style Designator: COUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING; Material Document and Classification: UNABLE TO DECODE; Overall Width: 0.3020 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN. 13 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.