

| Metal Shells and Related Components | ||||
| Material | Plating | |||
|---|---|---|---|---|
| Component | Name | Standard | Nickel | Chrome |
|
Brass | CuZn39Pb3 | >5 µm nickel ı | >2 µm chrome ² |
|
>2 µm nickel ³ | — | ||
|
>3 µm nickel ı | — | ||
| ı per QQ-N-290, class 2 ² per QQ-C-320, class 1 ³ per MIL-C-26074, class 1 |