The Inverted Nut,tube Coupling, cataloged under National Stock Number 4730-00-014-2430, 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 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-014-2430 |
| Primary Part Number | SAE J512 2 040110B |
| 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 | 0.313 INCHES NOMINAL IN |
| Seat Angle in Deg | 45.000 |
| Tube Outside Diameter for Which Designed | 0.125 INCHES NOMINAL IN |
| Style Designator | INVERTED NUT, TUBE, FLARE |
| Thread Pitch Diameters | +0.2849 TO 0.2883 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 81343-J512 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 9 FIGURE |
| Casehardening Indicator | NOT CASEHARDENED |
| Thread Size | 5/16-28 |
| Screw Thread Series Designator | NS |
| Material | COPPER ALLOY |
| Smallest Inside Diameter | 0.130 INCHES MINIMUM AND 0.133 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 |
|---|---|
| SAE J512 2 040110B PRIMARY | Sae International Dba Sae International (USA) |
| 100X2 PRIMARY | Danfoss Power Solutions II, Llc (USA) |
| Reference | Meaning |
|---|---|
| 2-040110B | 5/9 Secondary reference U.S. Government activity |
| 41-WB-02 | 5/9 Secondary reference Imperial |
| 2100X2 | 5/9 Secondary reference Essex Brass Corporation |
| J512 | 5/9 Secondary reference U.S. Government activity |
| 100X2 | 5/9 Secondary reference Dana Corp Weatherhead Div |
| J512 | 5/1 Secondary reference Sae International Dba Sae International |
| 41IF-2 | 3/2 Design control — primary reference U.S. Government activity |
| 142430 | 5/9 Secondary reference General Motors Corp |
| 2-040110B | 5/9 Secondary reference Sae International Dba Sae International |
| SAE-J512 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 4730-00-014-2430 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 4730-00-014-2430 has 2 manufacturer part numbers on file: SAE J512 2 040110B (Sae International Dba Sae International), 100X2 (Danfoss Power Solutions II, Llc).
1 possible match (shared part number, not a government interchangeability claim): 5365-00-333-1299. Verify interchangeability with system specifications before substitution.
Key specifications for SAE J512 2 040110B: Width Across Flats: 0.313 INCHES NOMINAL IN; Seat Angle in Deg: 45.000; Tube Outside Diameter for Which Designed: 0.125 INCHES NOMINAL IN; Style Designator: INVERTED NUT, TUBE, FLARE. 13 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.