Od 4.1 millimeters
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 5895-01-245-3563
NSN 6130-00-943-5214
NSN 6150-00-072-4944
NSN 6110-00-732-3647
NSN 6150-00-220-9382
NSN 6620-01-519-1387
NSN 5915-00-852-6663
NSN 5985-00-683-5592
NSN 5965-00-954-3011
NSN 5945-01-322-7960
NSN 5985-00-935-5074
NSN 5950-01-648-5842