Valve stop and suction cover platformed assembly

A fluid end of a reciprocating pump assembly comprising:

• a cylinder having a fluid inlet, a fluid outlet, and an access side wall comprising an access wall inner surface that defines an access opening, the access opening providing access to an inner area of the cylinder and having an access opening axis;
• a cover positioned in the access opening and forming a seal with the access wall inner surface along the access opening, the cover comprising a cover axis coaxial with the access opening axis;
• and
• a valve stop positioned partially in the fluid inlet, the valve stop comprising a spring retainer and a column portion, the column portion comprising a base, a flange, and a bushing, wherein the bushing comprises a bushing inner surface that defines a bushing through-hole such that when the valve stop is positioned partially in the fluid inlet, the through hole is not aligned with and fitted over a hub or post, and wherein the flange is positioned between the cover and the access wall inner surface, the flange comprising an arc shape.