A tublular-shaped item designed to be bolted to an engine block or the like. it may include external cooling fins. see also cylinder sleeve.
NSN 4140-00-161-8910
NSN 5855-01-631-2118
NSN 5998-01-225-1565
NSN 5965-01-341-1480
NSN 6135-01-096-1452
NSN 6645-00-609-7214
NSN 6645-01-032-5337
NSN 5999-01-160-6018
NSN 2925-01-129-1261
NSN 6610-01-344-9239
NSN 6650-01-396-4826
NSN 6650-01-017-0980