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 5950-00-956-9131
NSN 5905-01-646-4016
NSN 5998-00-161-6288
NSN 5996-00-752-6007
NSN 5996-01-555-0915
NSN 5999-01-645-5862
NSN 5925-01-295-2361
NSN 5930-01-381-5528
NSN 6105-01-019-3931
NSN 2925-00-902-3881
NSN 6135-01-168-2944
NSN 5905-00-951-5047