Item must comply with requirements of defense supply center philadelphia production standard no. Po0128nrp
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 6135-00-152-8729
NSN 6130-01-289-7676
NSN 6610-01-157-0426
NSN 5905-01-318-3989
NSN 5925-01-179-1453
NSN 5985-01-339-2315
NSN 5920-01-226-2896
NSN 5965-01-496-1633
NSN 6150-01-577-0146
NSN 4140-01-649-7326
NSN 5930-01-558-6227
NSN 5960-00-707-3335