The Coupling,shaft,flexible, cataloged under National Stock Number 3010-01-356-4731, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings). Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3010-01-356-4731 |
| Primary Part Number | KKN19/19-25.019 |
| Item Name | Coupling,shaft,flexible |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) |
| Status | ACTIVE |
| Keyway Depth | 25.0 MILLIMETERS NOMINAL BOTH ENDS MM |
| Securing Method | THREADED HOLE(S) BOTH ENDS |
| Threaded Hole Location | BOTH ENDS: 10 MM FROM END OF HUB MM |
| Bore Length | 25.0 MILLIMETERS NOMINAL BOTH ENDS MM |
| Design Type | INSERT |
| Keying Facility Type | KEYWAY BOTH ENDS |
| Outside Diameter | 40.0 MILLIMETERS NOMINAL MM |
| Features Provided | KEYWAY |
| Bore Shape | STRAIGHT BOTH ENDS |
| Keying Facility Quantity | 1 BOTH ENDS |
| Threaded Hole Quantity | 1 BOTH ENDS |
| Keyway Width | 19.0 MILLIMETERS NOMINAL BOTH ENDS MM |
| Bore Diameter | 21.0 MILLIMETERS NOMINAL BOTH ENDS MM |
| Insert Material | RUBBER |
| 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 |
|---|---|
| KKN19/19-25.019 PRIMARY | Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA) |
| 262746-1 | Rickmeier Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| KKN19/19-25.019 | 5/9 Secondary reference Rickmeier Gmbh |
| 24320/4 | 5/9 Secondary reference Rickmeier Gmbh |
NSN 3010-01-356-4731 is a Coupling,shaft,flexible, manufactured by Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings), classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-356-4731 has 2 manufacturer part numbers on file: KKN19/19-25.019 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)), 262746-1 (Rickmeier Gmbh).
1 possible match (shared part number, not a government interchangeability claim): 3010-01-356-4732. Verify interchangeability with system specifications before substitution.
Key specifications for KKN19/19-25.019: Keyway Depth: 25.0 MILLIMETERS NOMINAL BOTH ENDS MM; Securing Method: THREADED HOLE(S) BOTH ENDS; Threaded Hole Location: BOTH ENDS: 10 MM FROM END OF HUB MM; Bore Length: 25.0 MILLIMETERS NOMINAL BOTH ENDS MM. 14 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.