AIA/NAS - NAS522
COUPLING, FLEXIBLE, LOW PRESSURE AIR LINE
active, Most Current
| Organization: | AIA/NAS |
| Publication Date: | 31 October 2022 |
| Status: | active |
| Page Count: | 4 |
scope:
This specification establishes the requirements for a coupling for use with low pressure, low and medium high temperature, air ducts.
Types. Couplings shall be of two types as follows:
Type I - 450 °F, NAS520
Type II - 250 °F, NAS521
Sizes. Couplings shall be of the sizes specified on the applicable NAS drawing.
Document History
NAS522
October 31, 2022
COUPLING, FLEXIBLE, LOW PRESSURE AIR LINE
This specification establishes the requirements for a coupling for use with low pressure, low and medium high temperature, air ducts.
Types. Couplings shall be of two types as follows:
Type I – 450...
March 31, 2016
COUPLING, FLEXIBLE, LOW PRESSURE AIR LINE
This specification establishes the requirements for a coupling for use with low pressure, low and medium high temperature, air ducts.
Types. Couplings shall be of two types as follows:
Type I –...
September 30, 2011
COUPLING, FLEXIBLE, LOW PRESSURE AIR LINE
This specification establishes the requirements for a coupling for use with low pressure, low and medium high temperature, air ducts.
Types. Couplings shall be of two types as follows:
Type I – 450...
December 5, 1996
Coupling - Flexible, Low Pressure Air Line
This specification establishes requirements for a coupling for use with low pressure, low and medium high temperature, air ducts.
Types - Couplings shall be of two types as follows:
Type I. - 450...
January 1, 1953
Coupling - Flexible, Low Pressure Air Line
A description is not available for this item.