The various configurations of the connectors are intended for use as follows:

a. Series I connectors: General application within weapon system where a quick disconnect coupling system is required for blind mating or other mating problem areas. These connectors provide high-vibration characteristics and are suitable for severe wind and moisture problem (SWAMP) areas with proper connector accessories.

Class G, finish F: Provides a conductive shell for EMI considerations but with additional requirements for space grade applications.

Class H: Same as class Y, but with additional requirements for space grade applications.

Class T, finish F: Provides a conductive shell for EMI considerations.

Class Y: Applications where pressure must be maintained.

Classes R, U and X: Applications requiring high corrosion resistance.

b. Series II connectors: General application within weapon systems which are not subjected to high vibration or SWAMP areas. These connectors are not scoop proof (see 6.1.1). Connectors are light weight.

c. Series III connectors: General application within weapons systems and are suitable for blind mating areas. These connectors provide high-vibration characteristics at elevated temperature and are suitable for SWAMP areas with the proper connector accessories.

Class W - Provides a corrosion resistance shell.

Class F - Provides a conductive shell for EMI requirements.

Class K - Provides a stainless steel firewall connector for engine applications.

Class L - Provides a stainless steel connector for general applications.

Class S - Provides a stainless steel firewall connector with enhanced EMI performance.

Class Y - Applications where pressure must be maintained.

Class J - Provides a corrosion resistant, lightweight composite shell with conductivity equivalent to class W.

Class M - Provides a corrosion resistant, lightweight composite connector with conductive plating for EMI performance equivalent to class F.

Class G - Same as class F but additional requirements for space grade applications.

Class H - Same as class Y but additional requirements for space grade applications.

Classes R and X - Applications requiring high corrosion resistance (for metallic shells).

Classes P, T and Z - Applications requiring alternatives to cadmium plating.

d. Series IV connectors: General application within weapons systems where a quick disconnect coupling system is required for blind mating or other mating problem areas. These connectors provide high-vibration characteristics and are suitable for SWAMP areas with the proper connector accessories.

Classes W, F, G, H, J, M, and Y: Same as series III.

Classes R and X: Applications requiring high corrosion resistance.

Classes P, T and Z: Applications requiring alternatives to cadmium plating.

e. Series I and II are intermateable with series I and II as specified in MIL-DTL-27599.