1056742-1 is an SMP micro-miniature push-on coaxial connector designed for RF signal transmission in aerospace, defense, and marine applications. This connector is part of TE Connectivity's SMP series, which provides convenient push-on mating for space-constrained applications requiring reliable RF performance. The SMP series features various configurations including shroud press-fit, solder-in hermetic, and PCB mount options with full detent, limited detent, or smooth bore interfaces. These connectors are commonly used in C4ISR, commercial aerospace, ground defense, military aerospace, military marine, missile defense, and space applications where compact size and reliable RF connectivity are essential.