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 5835-01-589-4735
NSN 2925-01-252-8049
NSN 5999-00-524-5525
NSN 4140-01-162-6912
NSN 2925-01-360-3575
NSN 5965-01-388-5296
NSN 6610-00-811-6072
NSN 6110-01-229-7627
NSN 5975-01-401-5355
NSN 6610-01-414-1755
NSN 6105-00-794-3597
NSN 6145-01-115-8258