OST 26.260.454-99, GOST 52376-2005, ASME B 16.20, ASME B16.5, ASME B16.47 SERIES B (API 605), ASME B16.47 SERIES A (MSS-SP 44), DIN 2699, BSEN 1092 (BS 4504), BS 1560, BS 10, DIN FLANGES, JIS FLANGES, FRENCH NF STANDARD
Is a part that fills the space between two or more mated surfaces in compression, usually used to seal (prevent leakage) at the junction of the combined objects. The range includes spiral-wound gaskets.