Material is steel, mil-t-20157, type d; surface treatment is calorized
An item designed to distribute steam and/or air inside a boiler, for the purpose of cleaning tubes and walls.
NSN 4140-01-540-5028
NSN 2925-01-608-6895
NSN 5920-01-502-2857
NSN 6240-00-368-8541
NSN 5925-01-373-7068
NSN 6150-01-299-5227
NSN 5920-00-054-0172
NSN 5935-01-073-2425
NSN 5895-00-941-5457
NSN 5950-00-356-3690
NSN 2925-01-571-6472
NSN 6685-01-032-0497