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 5915-01-200-7449
NSN 6145-00-044-6673
NSN 6645-01-369-4371
NSN 5855-01-431-8937
NSN 6645-01-284-6533
NSN 5960-00-039-8533
NSN 6145-01-303-1000
NSN 5920-01-384-8751
NSN 5996-01-093-6154
NSN 6610-00-237-6154
NSN 5960-00-995-2554
NSN 5905-00-957-7381