The Locknut,tube Fitting, cataloged under National Stock Number 4730-01-620-1869, 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 Sae International Dba Sae International. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-620-1869 |
| Primary Part Number | AS5019T08 |
| Item Name | Locknut,tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Width Across Flats | 0.990 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN |
| Packing Recess Diameter | 1.478 INCHES NOMINAL IN |
| Thread Series | UNJS |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.7188 INCHES IN |
| Nut Height | 0.338 INCHES NOMINAL IN |
| Nut Style | TUBE FITTING LOCKNUT |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | TITANIUM ALLOY UNS R56400 OVERALL |
| 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 |
|---|---|
| AS5019T08 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AS5019T08 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4730-01-620-1869 is a Locknut,tube Fitting, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-620-1869 has 1 manufacturer part number on file: AS5019T08 (Sae International Dba Sae International).
Key specifications for AS5019T08: Width Across Flats: 0.990 INCHES MINIMUM AND 1.003 INCHES MAXIMUM IN; Packing Recess Diameter: 1.478 INCHES NOMINAL IN; Thread Series: UNJS; Thread Direction: RIGHT-HAND. 10 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.