Supporting-ring material: (stainless steel); sealing material: plastic, polytetrafuoroethylene; for thread m 18x1.5
No other part numbers with same form, fit, and function found.
A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.
NSN 6150-01-553-0709
NSN 5990-00-933-9110
NSN 6610-00-887-9457
NSN 4140-01-261-2966
NSN 5905-01-459-4351
NSN 5895-01-618-6477
NSN 5985-01-503-0662
NSN 5960-00-782-7658
NSN 6645-01-231-7779
NSN 5910-01-441-7683
NSN 5945-01-604-6595
NSN 5950-01-467-2426