Very good quality black plastic nut to use in jack of brands such as Cliff UK, Neutrik ... in their solder lugs or PC mount versions. It is not original but it fits perfectly.

3 washers and 3 nuts of size M12 or metric 12 for Fender jacks manufactured between 1988 to 1999 (rectangular format).

MADE IN JAPAN!

Genuine PC-Mount 4-pin mono jack for Fender brand amps built between approximately 1988 and 1999. It is not shipped in its original bag.

Spare Part Fender : 0990912000

MADE IN JAPAN!

Original PC-Mount 9-pin stereo jack for Fender brand amplifiers built between approximately 1988 and 1999.

Spare Part Fender : 0990913000

MADE IN JAPAN!

Common input jack in Ampeg , Crate, and in some solid state products from Fender during the early 1980s. Nut and washer included. Manufactured by Swithcraft in USA.

Genuine Fender 1/8" 3.5mm Stereo Jack with 5 pin for Mustang III Guitar Combo Amplifier.

Original R / A Mono Jack for use in Fender amps manufactured from 1999 to present. Nut and washer not included. Bushing Length = 0.34 "

It is shipped in its original bag.

Path Number: 0051658000

Original "Closed Circuit" jack for use in Fender amps. Supplied with nut and washer.

It is sent in its original bag.

Path Number: 00371170000

SWITCHCRAFT 14B 6.3mm Stereo 3 Conductor Jack w/Nut & Washer, Double Closed shorting Circuit.

Metal, stereo, shorting, 3/8" 6.35mm bushing, includes nut & washer, manufactured in USA 

used by Fender:

Footswitch Jack Prosonic

Return Jack Tonemaster

2 Genuine R / A Stereo Jacks for use in Fender amps built from 1999 to present. They are shipped in their original bag. Bushing Length = 0.34 "

1/4" (6.35mm) Stereo 9 pin jack for Fender® amplifiers, PCB mount, DPDT switched contacts. This is a copy of the low profile jack for Fender® amplifiers such as the Hot Rod III Deluxe (Preamp OUT, Poweramp IN) and Super-Sonic 22 (FX Send, FX Return), Super-Sonic 112 Combo (Send, Return), and corresponds to the following Fender® part numbers: 0059922049, 005-9922-049, and 0059922000.