Description
8D521W72PN Connector, Aluminium Plug — BOLTON SKU 61150.
About the 8D521W72PN Connector Plug, Aluminium Shell
The 8D521W72PN is a Souriau (Souriau-Sunbank by Eaton) 8D-series circular connector: a straight plug built in accordance with MIL-DTL-38999 Series III and EN 3645. The designation decodes as shell size 21, class W aluminium shell with olive-drab cadmium plating, insert arrangement 21-72, pin (P) contacts and normal (N) polarisation. The 21-72 layout is a mixed-power arrangement carrying 8 crimp contacts. The series uses triple-start threaded coupling with anti-decoupling, a high-performance contact retention system and RFI shielding, and is rated by the distributor listing for 500 mating cycles, 500 h salt spray and an operating temperature range of -65 °C to +175 °C. Contacts are typically ordered to suit and crimped at assembly; supply configuration is confirmed at quotation.
Key specifications
| Manufacturer | Souriau-Sunbank by Eaton |
|---|---|
| Series | 8D (MIL-DTL-38999 Series III / EN 3645 style) |
| Type | Straight plug, threaded coupling |
| Shell size / arrangement | 21 / 21-72, 8 contacts |
| Contacts | Pin, crimp type |
| Shell finish | Class W — aluminium, olive-drab cadmium |
| Operating temperature | -65 °C to +175 °C |
| Endurance | 500 mating cycles; 500 h salt spray |
Typical applications
38999 Series III-style plugs in this class terminate power and signal harnesses on aircraft, UAV, vehicle and ground-support equipment where vibration, EMI and environmental sealing requirements rule out commercial connectors. The mixed 21-72 arrangement is used where a few higher-current feeds and signal lines share one shell.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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