Switchcraft 151 Female 1/4-Inch Long Panel Mount Jack

1/4″ Mono 2 Conductor Thick Panel Mount Jack With Cable Clamp, Nickel Finish

Mounting Bushing: Nickel-plated copper alloy with knurled flange.

Insulating Spacer: Rigid plastic.

Insulator/Spring Mount: Thermoplastic.

Springs: Copper alloy.

Terminals: Tip: Copper alloy. Ring: (Number 152B only) copper alloy.

Sleeve: Steel, tin-plated.