Reference parts book 0532-lp-103-0916, section 6, page 91, figure 6.43, item 1
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 6320-01-592-4567
NSN 5945-00-394-6869
NSN 6150-01-143-3941
NSN 5950-01-431-8738
NSN 5935-01-620-3323
NSN 5996-01-534-1325
NSN 5920-00-808-0037
NSN 5920-01-442-8734
NSN 5965-01-580-0938
NSN 5950-01-445-6004
NSN 6150-00-930-1659
NSN 5925-00-301-0810