The Bearing,ball,annular, cataloged under National Stock Number 3110-01-073-3090, 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 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-073-3090 |
| Primary Part Number | 12283178 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Mpb Corp Div Timken Super Precision |
| Status | ACTIVE |
| Surface Finish | GROUND |
| Style Designator | 4 POINT BALL CONTACT, SPLIT INNER RING, SEPARABLE |
| Overall Outside Diameter | 1.5000 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Bore Diameter | 1.2500 INCHES NOMINAL IN |
| Material | STEEL COMP 440C ALIGNMENT 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 |
|---|---|
| 12283178 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12283178 PRIMARY | Mpb Corp Div Timken Super Precision (USA) |
| Reference | Meaning |
|---|---|
| S2024MC5 | 5/9 Secondary reference Mpb Corporation Dba Mpb Corp |
| S2024MC5P38LO1 | 5/1 Secondary reference Mpb Corp Div Timken Super Precision |
| 12283178 | 5/9 Secondary reference Mpb Corporation Dba Mpb Corp |
NSN 3110-01-073-3090 is a Bearing,ball,annular, manufactured by Mpb Corp Div Timken Super Precision, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-073-3090 has 2 manufacturer part numbers on file: 12283178 (U S Army Tank Automotive Command Amsta-Im-Mm), 12283178 (Mpb Corp Div Timken Super Precision).
Key specifications for 12283178: Surface Finish: GROUND; Style Designator: 4 POINT BALL CONTACT, SPLIT INNER RING, SEPARABLE; Overall Width: 0.1560 INCHES NOMINAL IN; Overall Outside Diameter: 1.5000 INCHES NOMINAL IN. 7 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.