The Nut,tube Coupling, cataloged under National Stock Number 4730-01-045-7977, 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 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-045-7977 |
| Primary Part Number | SAE J512 5 010110B |
| Item Name | 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 |
| Thread Series | UNF |
| Seat Angle | 0.45 DEGREES NOMINAL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Specification/standard Data | 81343-J512 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 4 FIGURE |
| Nut Height | 0.880 INCHES NOMINAL IN |
| Nut Style | TUBE COUPLING |
| Thread Class | 2B |
| Thread Quantity Per Inch | 24 |
| Material | COPPER ALLOY OVERALL |
| Smallest Inside Diameter | 0.317 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Nominal Tube Outside Diameter | 0.375 INCHES 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 5 010110B PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| SAE-J512 | 3/1 Design control — primary reference Sae International Dba Sae International |
| J512 | 5/9 Secondary reference U.S. Government activity |
| J512 | 5/9 Secondary reference Sae International Dba Sae International |
| MS39166-4 | 5/9 Secondary reference U.S. Government activity |
| SAE J512 5 010110B | 5/9 Secondary reference U.S. Government activity |
| 5 010110B | 5/9 Secondary reference U.S. Government activity |
| 41-FS-05 | 5/9 Secondary reference Dayco Industrial |
NSN 4730-01-045-7977 is a Nut,tube Coupling, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-045-7977 has 1 manufacturer part number on file: SAE J512 5 010110B (Sae International Dba Sae International).
Key specifications for SAE J512 5 010110B: Width Across Flats: 0.625 INCHES NOMINAL IN; Thread Series: UNF; Seat Angle: 0.45 DEGREES NOMINAL; Thread Direction: RIGHT-HAND. 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.