There are 5 inch inlet/outlet openings; shell, heads and baffle matl is 12 gage carbon steel
A device designed to prevent the escape of sparks from the exhaust of reciprocating internal combustion engines. It functions by trapping glowing carbon particles from exhaust gases in a receptacle that can be serviced.
NSN 5895-00-203-2216
NSN 6645-01-503-2240
NSN 5855-01-338-1718
NSN 5925-01-525-1853
NSN 2925-01-511-2667
NSN 5935-00-555-6945
NSN 5835-01-068-6976
NSN 5985-00-652-1631
NSN 6130-01-361-9268
NSN 5990-01-021-3665
NSN 2925-01-446-0525
NSN 6620-00-740-3699