38x4
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 6610-01-325-2585
NSN 5855-01-375-1191
NSN 5975-00-919-6414
NSN 6685-01-491-5015
NSN 5925-01-307-2363
NSN 5990-01-414-2778
NSN 6320-01-233-5798
NSN 5996-01-317-7289
NSN 6645-00-833-2395
NSN 2925-01-492-4193
NSN 4140-01-416-4898
NSN 2925-00-124-5465