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 6645-01-470-7246
NSN 5925-01-480-0513
NSN 6220-01-075-1964
NSN 5975-00-003-0933
NSN 6110-01-484-6897
NSN 6150-01-628-6430
NSN 5990-00-155-2306
NSN 6105-01-264-1297
NSN 5855-01-013-6864
NSN 5925-00-290-4451
NSN 5990-01-365-6016
NSN 5965-01-346-4929