Recorded cage 1hru7 as they state they hold the design control
An item designed to distribute steam and/or air inside a boiler, for the purpose of cleaning tubes and walls.
NSN 6685-01-608-0697
NSN 5910-00-936-3342
NSN 5855-00-466-2309
NSN 6685-01-555-6681
NSN 5985-00-288-1861
NSN 5999-01-421-3006
NSN 5999-01-359-1163
NSN 5915-01-288-8456
NSN 6220-01-598-6900
NSN 5999-00-359-6016
NSN 5920-01-076-7045
NSN 5905-01-160-5385