380 pc Buna-N o-ring kit contains 30 popular sizes, from -006 to -327. Typical static or dynamic applications include gasoline, jet fuel, water-based hydraulic fluid, glycols, etc. Temp range: -65 degrees F to +285 degrees F. Duro: 70. Meets MIL-G-21569B, cls 1 for general purpose use, AS568A, & ASTM D2000 2BG 720 EA14 EO14 EO34. Made in U.S. 20 pieces each for dash sizes 006, 007, 008, 009, 010, 011, and 012; 13 pieces each for dash sizes 110, 111, 112, 113, 114, 115, and 116; 10 pieces each for dash sizes 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, and 222; 7 pieces each for dash sizes 325, 326, and 327.