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 5950-01-552-4190
NSN 6145-01-420-7620
NSN 6240-01-513-9642
NSN 6110-01-537-9990
NSN 5945-01-146-4529
NSN 6145-01-442-6436
NSN 5960-01-253-6687
NSN 5998-01-217-0629
NSN 5996-01-377-3743
NSN 6685-01-014-0712
NSN 6220-01-371-8185
NSN 6130-01-182-4555