Item must comply with requirements of defense supply center philadelphiaproduction standard no. Po0258nrp
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.
Classification: Gaskets, washers and other seals, of vulcanized rubber other than hard rubber
NSN 5910-01-423-8459
NSN 5996-00-713-4013
NSN 6650-00-403-0246
NSN 5998-00-061-2861
NSN 2925-01-492-4193
NSN 5920-01-035-5456
NSN 5895-01-429-2082
NSN 4140-00-390-2373
NSN 5920-00-189-0858
NSN 6685-01-330-4910
NSN 5930-01-080-4407
NSN 5975-00-499-5741