The Locknut,tube Fitting, cataloged under National Stock Number 4730-00-455-2128, 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 Eaton Aerospace, Llc Dba Jackson South. 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 | 4730-00-455-2128 |
| Primary Part Number | 354181 |
| Item Name | Locknut,tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Width Across Flats | 1.375 INCHES NOMINAL IN |
| Packing Recess Diameter | 1.290 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-+416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.063 INCHES IN |
| Nut Height | 0.437 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | TUBE FITTING LOCKNUT |
| Thread Class | 3B |
| Thread Quantity Per Inch | 12 |
| Material | STEEL OVERALL |
| Nominal Tube Outside Diameter | 0.750 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 |
|---|---|
| 354181 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
NSN 4730-00-455-2128 is a Locknut,tube Fitting, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-455-2128 has 1 manufacturer part number on file: 354181 (Eaton Aerospace, Llc Dba Jackson South).
Key specifications for 354181: Width Across Flats: 1.375 INCHES NOMINAL IN; Packing Recess Diameter: 1.290 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-+416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UN. 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.