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 5915-01-163-2580
NSN 5920-01-227-1877
NSN 5920-01-422-9616
NSN 6110-00-502-2391
NSN 5950-01-441-2143
NSN 5985-01-210-0916
NSN 5925-00-960-5214
NSN 7035-00-371-7749
NSN 5915-01-585-4204
NSN 7035-01-078-0155
NSN 5935-01-336-9863
NSN 6620-01-488-4681