The Coupling,shaft,flexible, cataloged under National Stock Number 3010-01-025-7940, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3010-01-025-7940 |
| Primary Part Number | F201-1/2SB |
| 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 | 0.2200 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 |
|---|---|
| F201-1/2SB PRIMARY | Ameridrives International Llc Dba Ameridrives International Llc (USA) |
| GCP662PC41 PRIMARY | M.t. Davidson Company (USA) |
| Reference | Meaning |
|---|---|
| F201-1/2RB | 5/9 Secondary reference Ameridrives International Llc Dba Ameridrives International Llc |
| F101 1-2 | C/1 Advisory reference — outside the item-of-supply concept Ameridrives International Llc Dba Ameridrives International Llc |
| F101-1/2RB | 5/9 Secondary reference Ameridrives International Llc Dba Ameridrives International Llc |
| 3010PL1243218 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| F201.5SB | C/1 Advisory reference — outside the item-of-supply concept Ameridrives International Llc Dba Ameridrives International Llc |
| F101 1-2 R0UGH | C/1 Advisory reference — outside the item-of-supply concept Ameridrives International Llc Dba Ameridrives International Llc |
| F-SIZE 101 1/2 | C/1 Advisory reference — outside the item-of-supply concept M.t. Davidson Company |
NSN 3010-01-025-7940 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 3010-01-025-7940 has 2 manufacturer part numbers on file: F201-1/2SB (Ameridrives International Llc Dba Ameridrives International Llc), GCP662PC41 (M.t. Davidson Company).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-246-2773. Verify interchangeability with system specifications before substitution.
Key specifications for F201-1/2SB: Keyway Depth: 0.2200 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.