The Locknut,tube Fitting, cataloged under National Stock Number 4730-01-593-6728, 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 Boeing Defence Australia Ltd. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-593-6728 |
| Primary Part Number | BACN10DU5J |
| Item Name | Locknut,tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Boeing Defence Australia Ltd |
| Status | ACTIVE |
| Width Across Flats | 0.750 INCHES NOMINAL IN |
| Packing Recess Diameter | 0.670 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Nut Height | 0.281 INCHES NOMINAL IN |
| Nut Style | TUBE FITTING LOCKNUT |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 304 OVERALL |
| Packing Recess Depth | 0.042 INCHES NOMINAL 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 |
|---|---|
| BACN10DU5J | Boeing Defence Australia Ltd (AUS) |
| Reference | Meaning |
|---|---|
| BACN10DU5J | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-593-6728 is a Locknut,tube Fitting, manufactured by Boeing Defence Australia Ltd, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-593-6728 has 1 manufacturer part number on file: BACN10DU5J (Boeing Defence Australia Ltd).
Key specifications for BACN10DU5J: Width Across Flats: 0.750 INCHES NOMINAL IN; Packing Recess Diameter: 0.670 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 12 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.