The Coupling,shaft,flexible, cataloged under National Stock Number 3010-00-997-0163, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Ameridrives International Llc Dba Ameridrives International Llc. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-00-997-0163 |
| Primary Part Number | MC4446 |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Ameridrives International Llc Dba Ameridrives International Llc |
| Status | ACTIVE |
| Keyway Depth | 0.1900 INCHES NOMINAL BOTH ENDS IN |
| Bore Length | 1.9400 INCHES NOMINAL BOTH ENDS IN |
| Design Type | INTERNAL GEAR |
| Keying Facility Type | KEYWAY BOTH ENDS |
| Outside Diameter | 6.000 INCHES NOMINAL IN |
| Features Provided | KEYWAY AND EXPOSED COUPLING BOLT TYPE AND SPLINE GEAR TEETH AND SHROUDED COUPLING BOLT TYPE |
| Bore Shape | ROUGH STOCK BOTH ENDS |
| Keying Facility Quantity | 1 BOTH ENDS |
| Keyway Width | 0.500 INCHES NOMINAL BOTH ENDS IN |
| Bore Diameter | 2.1250 INCHES MAXIMUM BOTH ENDS 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 |
|---|---|
| MC4446 PRIMARY | Ameridrives International Llc Dba Ameridrives International Llc (USA) |
| Reference | Meaning |
|---|---|
| DWG4446 | 5/9 Secondary reference Zurn Industries Inc |
| FL101-1-2CL1 | 5/9 Secondary reference Zurn Industries Inc |
NSN 3010-00-997-0163 is a Coupling,shaft,flexible, manufactured by Ameridrives International Llc Dba Ameridrives International Llc, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-00-997-0163 has 1 manufacturer part number on file: MC4446 (Ameridrives International Llc Dba Ameridrives International Llc).
Key specifications for MC4446: Keyway Depth: 0.1900 INCHES NOMINAL BOTH ENDS IN; Bore Length: 1.9400 INCHES NOMINAL BOTH ENDS IN; Design Type: INTERNAL GEAR; Keying Facility Type: KEYWAY BOTH ENDS. 10 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.