The D38999/26WA98PN is a Series III Tri-Start circular connector plug conforming to MIL-DTL-38999 specifications, designed for military, aerospace, and harsh environment applications. This connector features a shell size 25 (J) with a 98-contact insert arrangement, supporting mixed contact sizes including size 22D, 20, 16, 12, 8, and coaxial contacts. The connector is available with pin contacts (P designation) and employs crimp termination with a blackened nickel or corrosion-resistant finish. It provides solid metal-to-metal coupling for superior EMI/EMP shielding effectiveness exceeding -50 dB @ 10 GHz and is rated for service class I operation. The connector is fully intermateable with standard receptacles and is commonly used in stores management, power distribution, and signal transmission systems requiring reliable, damage-free separation and instant decoupling in demanding military and aerospace environments.