Item must comply with requirements of defense supply center philadelphia production standard no. Po0089nrp
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 6610-01-657-1254
NSN 6685-01-660-3819
NSN 5960-00-343-2888
NSN 5905-01-401-5325
NSN 5930-01-460-4667
NSN 5915-01-203-6118
NSN 5960-00-968-7582
NSN 6320-00-459-8973
NSN 6650-00-299-9681
NSN 6320-01-397-9995
NSN 6645-01-076-4655
NSN 6240-01-545-5521