The Bearing,ball,airframe, cataloged under National Stock Number 3110-00-682-4501, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-682-4501 |
| Primary Part Number | C3746BME3 |
| Item Name | Bearing,ball,airframe |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Mpb Corp Div Timken Super Precision |
| Status | ACTIVE |
| Outer Ring Width | 0.2500 INCHES NOMINAL IN |
| Style Designator | SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE |
| Overall Outside Diameter | 2.8744 INCHES MINIMUM AND 2.8750 INCHES MAXIMUM IN |
| Load Direction | RADIAL |
| Bore Diameter | 2.3122 INCHES MINIMUM AND 2.3128 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Inner Ring Width | 0.2760 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN |
| 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 |
|---|---|
| C3746BME3 PRIMARY | Mpb Corp Div Timken Super Precision (USA) |
| Reference | Meaning |
|---|---|
| C3746BME5P515L02 | 5/9 Secondary reference Mpb Corp Div Timken Super Precision |
| AVBR78 | 1/2 Source control — Government-approved source U.S. Government activity |
| HPPBR78 | 5/9 Secondary reference U.S. Government activity |
| C3746BME5 | 5/9 Secondary reference Mpb Corp Div Timken Super Precision |
| TCR37-46P | 5/9 Secondary reference Mpb Corp Div Timken Super Precision |
| HPPBR78 | 5/9 Secondary reference Helicopter Parts Service Inc |
NSN 3110-00-682-4501 is a Bearing,ball,airframe, manufactured by Mpb Corp Div Timken Super Precision, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-682-4501 has 1 manufacturer part number on file: C3746BME3 (Mpb Corp Div Timken Super Precision).
Key specifications for C3746BME3: Outer Ring Width: 0.2500 INCHES NOMINAL IN; Style Designator: SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE; Overall Outside Diameter: 2.8744 INCHES MINIMUM AND 2.8750 INCHES MAXIMUM IN; Load Direction: RADIAL. 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.