Identified as dash no. 20 o-ring used on bae rear end cap bom
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.
Classification: Gaskets, washers and other seals, of vulcanized rubber other than hard rubber
NSN 6110-01-580-4153
NSN 5925-01-197-9899
NSN 4140-01-525-7692
NSN 6685-01-445-3518
NSN 5985-00-636-8689
NSN 5950-00-329-6123
NSN 6610-01-010-3159
NSN 5985-01-212-6902
NSN 5855-01-143-4470
NSN 5945-01-466-5575
NSN 5990-00-188-6111
NSN 6145-01-076-3699