Parker Hanging Pressure Bars - Bar A, Bar B + Bar C + Bar P

HANGING 3 PIECE PRESSURE BAR FOR PARKER BUTTON FILLERS.  Bars A, B and C are reproductions of all three sizes of Parker's hanging pressure bars for Parker button fillers. Bar P are original Parker parts found on Fred Krinke's table at the LA Pen show. The sizes pressure bar that a given size of pen uses overlaps a great deal.

Bar A: Long, 3 piece hanging pressure bar. 2 13/16 inch (72 mm) in length.

Bar B: Medium, 3 piece hanging pressure bar. 2 7/16 (62 mm). "Bar B" size fits a wide range of fountain pen sizes from Duofold Seniors to small sized Challengers.  This was the only size supplied to Parker's repair people in the end. (See the second photo below; the numbers on the pens indicate the volume of ink taken in by the pen shown with the medium pressure bar in it. All these are quite righteous volumes of ink for the given pen.)

Bar P: NOS 3 piece hanging pressure bar. 2 17/64 inches (57.658 mm) in length.

Bar C: Short, 3 piece hanging pressure bar. 2 5/32 inch (55 mm) in length.

For these pressure bars to work, you'll need to be able to pass a No. 12 drill through the hole in the top of the barrel to clean it out and adjust for any shrinkage and crud build up that has occurred over the ages. I find this to be required even when re-using an original Parker 3 piece pressure bar. This type of pressure bar frequently results in less force being required when pushing the fill button down, which greatly alleviates the chances of an accident with an open ink bottle. The drill shown at the bottom of the photo is a no. 12 and is available on this listing.

The sizes are shown in the first photo below, and as pointed out above, there is quite an overlap in the sizes that will fit a given size pen. Just try to get the length from the top of the button to the section of the pen and don't exceed it with the pressure bar length.

Note: These bars won't work in Pastels; there's not enough diameter under the barrel collar for a 3 piece pressure bar to expand in a Pastel.