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 5996-01-415-1028
NSN 2925-00-448-4685
NSN 5998-01-150-0841
NSN 5930-01-398-9576
NSN 6135-01-612-6991
NSN 5985-00-137-0488
NSN 5996-01-502-6330
NSN 6105-01-173-3194
NSN 6110-01-141-1654
NSN 6610-01-568-4023
NSN 6110-01-234-3618
NSN 6105-00-466-9880