The Bearing,ball,annular, cataloged under National Stock Number 3110-01-170-7817, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Skf Usa Inc.. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-170-7817 |
| Primary Part Number | 42312-203 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Skf Usa Inc. |
| Status | ACTIVE |
| Surface Finish | GROUND |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material Document and Classification | AMS-6440 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Overall Outside Diameter | 1.8502 INCHES MINIMUM AND 1.8504 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Bore Diameter | 1.1809 INCHES MINIMUM AND 1.1811 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 42312-203 PRIMARY | Skf Usa Inc. (USA) |
| 42312-203 PRIMARY | Mpb Corporation Dba Mpb Corp (USA) |
| HKB 006-103 | Mpb Corporation Dba Mpb Corp (USA) |
| 1906S16 | Skf Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| 10107539 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 42312D203 | 1/2 Source control — Government-approved source U.S. Government activity |
| 42312-203 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3110-01-170-7817 is a Bearing,ball,annular, manufactured by Skf Usa Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-170-7817 has 4 manufacturer part numbers on file: 42312-203 (Skf Usa Inc.), 42312-203 (Mpb Corporation Dba Mpb Corp), HKB 006-103 (Mpb Corporation Dba Mpb Corp), 1906S16 (Skf Usa Inc.).
Key specifications for 42312-203: Surface Finish: GROUND; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE; Material Document and Classification: AMS-6440 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Overall Width: 0.3493 INCHES MINIMUM AND 0.3543 INCHES MAXIMUM IN. 8 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.