The Series A3 90° PG/M Thread Backshell A37-444 is designed to provide environmental protection and mechanical strain relief for MIL-DTL-38999 Series III and IV connectors. Available with both PG and Metric threads, this backshell offers flexibility for a range of connector configurations. Its 90° angled design supports efficient cable routing in space-constrained environments, making it suitable for aerospace, defense, and industrial applications where moderate protection and secure cable management are required.