The Bearing,ball,annular, cataloged under National Stock Number 3110-00-003-9860, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Kaydon Corporation Dba Kaydon Corp. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3110-00-003-9860 |
| Primary Part Number | 578R929H01 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Kaydon Corporation Dba Kaydon Corp |
| Status | ACTIVE |
| Internal Clearance | 0.0028 INCHES MINIMUM RADIAL AND 0.0048 INCHES MAXIMUM RADIAL IN |
| Surface Finish | GROUND |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE BALL |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OUTER RING |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE INNER RING |
| Material Document and Classification | MIL-P-79,TY FBE MIL SPEC SINGLE MATERIAL RESPONSE RETAINER |
| Overall Outside Diameter | 12.7486 INCHES MINIMUM AND 12.7500 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Bore Diameter | 11.9986 INCHES MINIMUM AND 12.0000 INCHES MAXIMUM IN |
| Material | STEEL COMP E52100 BALL |
| Material | COTTON AND PLASTIC PHENOLIC 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 |
|---|---|
| 578R929H01 PRIMARY | Kaydon Corporation Dba Kaydon Corp (USA) |
| Reference | Meaning |
|---|---|
| 578R929H01 | 1/2 Source control — Government-approved source U.S. Government activity |
| 50194001 | 5/1 Secondary reference Kaydon Corporation Dba Kaydon Corp |
| KC120CZ000 | 5/9 Secondary reference Kaydon Corporation Dba Kaydon Corp |
NSN 3110-00-003-9860 is a Bearing,ball,annular, manufactured by Kaydon Corporation Dba Kaydon Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-003-9860 has 1 manufacturer part number on file: 578R929H01 (Kaydon Corporation Dba Kaydon Corp).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-277-6024. Verify interchangeability with system specifications before substitution.
Key specifications for 578R929H01: Internal Clearance: 0.0028 INCHES MINIMUM RADIAL AND 0.0048 INCHES MAXIMUM RADIAL IN; Surface Finish: GROUND; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE BALL. 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.