ADAPTER TYPE: MALE PIPE ADAPTER; FLARE ANGLE: 37 DEG; MATERIAL DETAIL: FORGED OR BAR STOCK 12L14 CARBON STEEL WITH A ZINC-PLATED FINISH; FOR OUTSIDE TUBE DIAMETER: 1/2 INCH; NUT/TUBE END THREAD: NPTF; PIPE SIZE: 3/8 INCH; MAX PRESSURE: 4000 PSI AT 72 DEG F; VACUUM RATING: 28 IN HG AT 72 DEG F; OPERATING TEMPERATURE RANGE: -63 DEG TO PLUS 400 DEG F; TUBING COMPATIBILTY NOTE: USE WITH FLAREABLE WELDED OR SEAMLESS STEEL TUBING; SAE SPECIFICATION: SAE J514