The Locknut,tube Fitting, cataloged under National Stock Number 4730-01-509-2339, 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 Rockwell Collins Inc. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-509-2339 |
| Primary Part Number | 151429 |
| Item Name | Locknut,tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rockwell Collins Inc |
| Status | ACTIVE |
| Width Across Flats | 0.621 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN |
| Packing Recess Diameter | 0.546 INCHES NOMINAL IN |
| Thread Series | UNF |
| Supplementary Features | 2 HOLES DRILLED .050 FOR SAFETY WIRE, SEE DRAWING 151429 |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Specification/standard Data | 88044-AN6289 GOVERNMENT STANDARD |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | TUBE FITTING LOCKNUT |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Nominal Tube Outside Diameter | 0.188 INCHES IN |
| Packing Recess Depth | 0.037 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 |
|---|---|
| 151429 PRIMARY | Rockwell Collins Inc (USA) |
NSN 4730-01-509-2339 is a Locknut,tube Fitting, manufactured by Rockwell Collins Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-509-2339 has 1 manufacturer part number on file: 151429 (Rockwell Collins Inc).
Key specifications for 151429: Width Across Flats: 0.621 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN; Packing Recess Diameter: 0.546 INCHES NOMINAL IN; Thread Series: UNF; Supplementary Features: 2 HOLES DRILLED .050 FOR SAFETY WIRE, SEE DRAWING 151429. 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.