: item must comply with requirements of defense supply center philadelphia production standard no. Po011999950.
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 5945-00-290-1779
NSN 5990-01-254-2936
NSN 2925-01-415-0264
NSN 6610-01-559-5073
NSN 6610-00-327-4278
NSN 5930-01-116-5539
NSN 6220-01-377-7701
NSN 5998-01-599-9907
NSN 5975-00-147-4791
NSN 6220-01-449-1239
NSN 5998-01-500-1258
NSN 6220-01-292-7841