The Locknut,tube Fitting, cataloged under National Stock Number 4730-00-959-5804, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc. Government technical data includes 13 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-959-5804 |
| Primary Part Number | K247040 |
| Item Name | Locknut,tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc |
| Status | ACTIVE |
| Width Across Flats | 1.114 INCHES MINIMUM AND 1.127 INCHES MAXIMUM IN |
| Packing Recess Diameter | 1.029 INCHES MINIMUM AND 1.061 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.875 INCHES IN |
| Nut Height | 0.391 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Nut Style | TUBE FITTING LOCKNUT |
| Thread Class | 3B |
| Thread Quantity Per Inch | 14 |
| Material | ALUMINUM OVERALL |
| Nominal Tube Outside Diameter | 0.625 INCHES IN |
| Packing Recess Depth | 0.049 INCHES MINIMUM AND 0.059 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 |
|---|---|
| K247040 PRIMARY | Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| K247040 | 3/9 Design control — primary reference Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc. |
| 247040 | 5/9 Secondary reference Kidde-Fenwal, Llc |
| 247040 | 5/9 Secondary reference Davey Compressor Co Div of Keco Industries Inc |
| 5857-1004 | 5/9 Secondary reference Kidde-Fenwal, Llc |
NSN 4730-00-959-5804 is a Locknut,tube Fitting, manufactured by Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-959-5804 has 1 manufacturer part number on file: K247040 (Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc).
Key specifications for K247040: Width Across Flats: 1.114 INCHES MINIMUM AND 1.127 INCHES MAXIMUM IN; Packing Recess Diameter: 1.029 INCHES MINIMUM AND 1.061 INCHES MAXIMUM IN; Thread Series: UNF; Thread Direction: RIGHT-HAND. 13 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.