MIL-N-27444D (NOTICE 1), MILITARY SPECIFICATION: NET CARGO TIEDOWN, PALLETS, HCU-7/E, HCU-15/C, HCU-11/C, and HCU-16/C (22 MAR 1996)., MlL-N-27444D (USAF) is inactive for new design and is no longer used by the fir Force except forreplacement purposes.