An air pressure item used on an aircraft air conditioning system to provide a visual warning signal when a filter needs cleaning or changing.
NSN 6220-01-234-9151
NSN 5990-00-197-0159
NSN 5990-01-627-8097
NSN 5975-01-152-1960
NSN 4140-00-936-0233
NSN 5915-00-682-0650
NSN 6130-00-647-8471
NSN 5895-01-131-9138
NSN 5960-01-078-2149
NSN 5910-01-409-2852
NSN 6320-01-512-2031
NSN 7035-01-577-0003