| THREAD SERIES | UNF |
| NOMINAL THREAD SIZE | 0.500 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI 316 ASSN STD SINGLE MATERIAL RESPONSE OR |
| SAE 30316 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| NUT STYLE | TUBE COUPLING |
| NUT HEIGHT | 0.670 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 0.625 INCHES NOMINAL |
| LENGTH TO SHOULDER | 0.326 INCHES NOMINAL |
| SMALLEST INSIDE DIAMETER | 0.359 INCHES MINIMUM AND |
| 0.375 INCHES MAXIMUM |
| SEAT ANGLE | 37.0 DEGREES NOMINAL |
| FABRICATION METHOD | MACHINED |
| NOMINAL TUBE OUTSIDE DIAMETER | 0.312 INCHES |
| SPECIFICATION/STANDARD DATA | 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND |
| 96906-MS51531 GOVERNMENT STANDARD |
| NONDEFINITIVE SPEC/STD DATA | 12 FIGURE |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-DTL-18866 |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS51531B5S |