Thickness is .312 and .250, outside edges
An item, made of rubber or plastic, usually cylindrical, with or without a flange, having one or more holes extending through its entire length, usually parallel to its axis. The overall length must exceed 25 percent of its diameter or a distance across the peripheral flats for items without a flange. For items formed of other material see bushing, sleeve. Excludes bumper, nonmetallic and grommet nonmetallic.
NSN 5905-00-007-5970
NSN 2925-01-197-7864
NSN 5965-01-603-0118
NSN 6320-01-652-3806
NSN 5975-01-210-3187
NSN 6105-01-183-3135
NSN 5950-01-176-1590
NSN 5985-01-570-2184
NSN 5905-00-866-2692
NSN 2925-00-323-7394
NSN 6110-01-445-6905
NSN 6645-01-324-5621