The Inverted Nut,tube Coupling, cataloged under National Stock Number 4730-01-377-4342, 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 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-377-4342 |
| Primary Part Number | SAE J512 8 040110CA |
| Item Name | Inverted Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Width Across Flats | 0.625 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.0 |
| Tube Outside Diameter for Which Designed | 0.500 INCHES NOMINAL IN |
| Style Designator | INVERTED NUT, TUBE, FLARE |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 81343-J512 GOVERNMENT STANDARD |
| Nondefinitive Spec/std Data | 9 FIGURE |
| Casehardening Indicator | NOT CASEHARDENED |
| Thread Size | 3/4-16 |
| Screw Thread Series Designator | UNF |
| Surface Treatment | CHROMATE ZINC |
| Thread Class | 2A A |
| Material | STEEL |
| Fabrication Method | BAR STOCK, MACHINED |
| Smallest Inside Diameter | 0.635 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 |
|---|---|
| SAE J512 8 040110CA PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| 8 040110CA | 3/9 Design control — primary reference U.S. Government activity |
| SAE-J512 | 3/1 Design control — primary reference Sae International Dba Sae International |
| 8 040110CA | 5/9 Secondary reference Sae International Dba Sae International |
NSN 4730-01-377-4342 is a Inverted Nut,tube Coupling, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-377-4342 has 1 manufacturer part number on file: SAE J512 8 040110CA (Sae International Dba Sae International).
Key specifications for SAE J512 8 040110CA: Width Across Flats: 0.625 INCHES NOMINAL IN; Seat Angle in Deg: 45.0; Tube Outside Diameter for Which Designed: 0.500 INCHES NOMINAL IN; Style Designator: INVERTED NUT, TUBE, FLARE. 15 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.