The Bearing,ball,annular, cataloged under National Stock Number 3110-01-220-6578, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Mpb Corp Div Timken Super Precision. Government technical data includes 19 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-220-6578 |
| Primary Part Number | S1219MCHH1 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Mpb Corp Div Timken Super Precision |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Lubrication Material | GREASE |
| Internal Clearance | 0.0005 INCHES MINIMUM RADIAL AND 0.0015 INCHES MAXIMUM RADIAL IN |
| Surface Finish | GROUND |
| Shield Quantity | 2 |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5618 ASSN STD SINGLE MATERIAL RESPONSE BALL |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5618 ASSN STD SINGLE MATERIAL RESPONSE INNER RING |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5618 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING |
| Overall Outside Diameter | 1.1870 INCHES MINIMUM AND 1.1875 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Bore Diameter | 0.7498 INCHES MINIMUM AND 0.7502 INCHES MAXIMUM IN |
| Material | STEEL COMP 440C INNER RING |
| Material | STEEL COMP 440C OUTER RING |
| Material | PLASTIC PHENOLIC RETAINER |
| Material | STEEL COMP 440C BALL |
| Material | STEEL CORROSION RESISTING SHIELD |
| Lubrication Material Document and Classification | MIL-G-81322 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 |
|---|---|
| S1219MCHH1 PRIMARY | Mpb Corp Div Timken Super Precision (USA) |
| 3169598-1 | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
NSN 3110-01-220-6578 is a Bearing,ball,annular, manufactured by Mpb Corp Div Timken Super Precision, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-220-6578 has 2 manufacturer part numbers on file: S1219MCHH1 (Mpb Corp Div Timken Super Precision), 3169598-1 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)).
Key specifications for S1219MCHH1: Retainer Fabrication Method: MACHINED; Lubrication Material: GREASE; Internal Clearance: 0.0005 INCHES MINIMUM RADIAL AND 0.0015 INCHES MAXIMUM RADIAL IN; Surface Finish: GROUND. 19 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.