The Bearing,ball,annular, cataloged under National Stock Number 3110-01-179-7908, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Mpb Corporation Dba Mpb Corp. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3110-01-179-7908 |
| Primary Part Number | HKZZZ001-20 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Mpb Corporation Dba Mpb Corp |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Lubrication Material | GREASE |
| Internal Clearance | 0.0007 INCHES MINIMUM RADIAL AND 0.0013 INCHES MAXIMUM RADIAL IN |
| Surface Finish | GROUND |
| Shield Quantity | 2 |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material Document and Classification | AMS-6440 ASSN STD 1ST MATERIAL RESPONSE INNER RACE |
| Material Document and Classification | AMS-6440 ASSN STD 2ND MATERIAL RESPONSE OUTER RACE |
| Material Document and Classification | AMS-6440 ASSN STD 3RD MATERIAL RESPONSE BALL |
| Overall Outside Diameter | 0.9445 INCHES MINIMUM AND 0.9449 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Alignment Type | RIGID |
| Standard Tolerance Designation | AFBMA CLASS 1 |
| Bore Diameter | 0.4721 INCHES MINIMUM AND 0.4724 INCHES MAXIMUM IN |
| Material | STEEL COMP E52100 BALL |
| Material | STEEL COMP E52100 INNER RACE |
| Material | STEEL COMP E52100 OUTER RACE |
| Material | STEEL CAGE |
| 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 |
|---|---|
| HKZZZ001-20 PRIMARY | Mpb Corporation Dba Mpb Corp (USA) |
| Reference | Meaning |
|---|---|
| 58408 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 3110-01-179-7908 is a Bearing,ball,annular, manufactured by Mpb Corporation Dba Mpb Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-179-7908 has 1 manufacturer part number on file: HKZZZ001-20 (Mpb Corporation Dba Mpb Corp).
1 possible match (shared part number, not a government interchangeability claim): 5120-01-431-7248. Verify interchangeability with system specifications before substitution.
Key specifications for HKZZZ001-20: Retainer Fabrication Method: MACHINED; Lubrication Material: GREASE; Internal Clearance: 0.0007 INCHES MINIMUM RADIAL AND 0.0013 INCHES MAXIMUM RADIAL IN; Surface Finish: GROUND. 20 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.