MIL-DTL-87174B, DETAIL SPECIFICATION: HELMET, FLYER'S HGU-55/P (08-SEP-2020)

MIL-DTL-87174B, DETAIL SPECIFICATION: HELMET, FLYER'S HGU-55/P (08-SEP-2020)., This specification covers the requirements for the HGU-55/P flyer's helmet. This specification is for an Aviation Critical Safety Item (CSI) / Flight Safety Critical Aircraft Part (FSCAP) and the acquisition process needs to comply with the DoD Supply Chain Materiel Management Procedures, DoDM 4140.01, Volume 11.