For 120 mm, aimtest barrel assembly (p/n 50185)
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 5895-01-312-2601
NSN 6135-00-377-9165
NSN 5965-00-247-4886
NSN 5905-00-105-8646
NSN 5835-01-370-4292
NSN 5998-01-123-4757
NSN 5960-00-851-3625
NSN 5945-00-403-8826
NSN 5835-01-412-0344
NSN 5905-00-280-2747
NSN 6110-00-819-4917
NSN 6240-01-495-9845