The Coupling,shaft,flexible, cataloged under National Stock Number 3010-00-271-6000, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-00-271-6000 |
| Primary Part Number | 6407K16 |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Keyway Depth | 0.4690 INCHES NOMINAL BOTH ENDS IN |
| Securing Method | THREADED HOLE(S) SECOND END |
| Threaded Hole Location | BOTH ENDS: LOCATED ON TOP OF KEY |
| Bore Length | 1.1250 INCHES NOMINAL BOTH ENDS IN |
| Design Type | ROLLER CHAIN |
| Keying Facility Type | KEYWAY BOTH ENDS |
| Outside Diameter | 3.031 INCHES NOMINAL IN |
| Features Provided | KEYWAY AND CHAIN COVER |
| Bore Shape | STRAIGHT BOTH ENDS |
| Keying Facility Quantity | 1 BOTH ENDS |
| Threaded Hole Quantity | 1 BOTH ENDS |
| Thread Size Designator | 1/4-20 BOTH ENDS |
| Keyway Width | 0.188 INCHES NOMINAL BOTH ENDS IN |
| Bore Diameter | 0.7500 INCHES NOMINAL BOTH ENDS IN |
| Furnished Items and Quantity | 2 SETSCREWS |
| 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 |
|---|---|
| 6407K16 | Mcmaster-Carr Supply Co (USA) |
| 174010 | Hampton Hydraulics, Llc (USA) |
| FB4016 3/4 | Reliance Electric Company Dba Reliance & Dodge Brands (USA) |
| Reference | Meaning |
|---|---|
| 174010 | 5/9 Secondary reference Victor Fluid Power Inc |
| D4016-3-4 | 3/9 Design control — primary reference Diamond Chain Co Div of Amsted Industries Inc |
| 6407N2-3-4 | 5/9 Secondary reference Mcmaster-Carr Supply Co |
NSN 3010-00-271-6000 is a Coupling,shaft,flexible, manufactured by Mcmaster-Carr Supply Co, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-00-271-6000 has 3 manufacturer part numbers on file: 6407K16 (Mcmaster-Carr Supply Co), 174010 (Hampton Hydraulics, Llc), FB4016 3/4 (Reliance Electric Company Dba Reliance & Dodge Brands).
2 possible matches (shared part number, not a government interchangeability claim): 5815-00-916-1370, 3040-01-516-5764. Verify interchangeability with system specifications before substitution.
Key specifications for 6407K16: Keyway Depth: 0.4690 INCHES NOMINAL BOTH ENDS IN; Securing Method: THREADED HOLE(S) SECOND END; Threaded Hole Location: BOTH ENDS: LOCATED ON TOP OF KEY; Bore Length: 1.1250 INCHES NOMINAL BOTH ENDS IN. 15 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.