Midland Metal 26183 Adapter with 26004 Sleeve Nut, 5/16 in Tube OD x 1/8 in Male NPTF, Brass

Captive Sleeve Male Adapter, Connection Size 1: 5/16 in, Connection Type 1: Compression, Connection Size 2: 1/8 in, Connection Type 2: Male NPTF, Brass, -65 to 250 deg F