What part number does it replace?

It is an aftermarket replacement for FMC Bean part number 3267349; the number is given for identification and cross-reference only and does not indicate OEM manufacture.

Piston Cup 1-5/8 Inch Abrasive Service HSN

Piston Cup 1-5/8 Inch Abrasive Service HSN — Piston Cup aftermarket replacement part

This is a 1-5/8 inch abrasive-service HSN piston cup for FMC Bean piston pumps. It is the flexible sealing element fitted to the piston in the fluid end, maintaining the seal against the cylinder liner bore as the piston reciprocates. The "abrasive service" designation in the name indicates it is intended for duty handling abrasive fluids, and "HSN" is the seal-compound designation given in the product name. It fits the FMC Bean A0413, E0413, and L0413 models. Supplied as an aftermarket replacement that can replace FMC Bean part number 3267349.

What it is

A piston cup is the flexible sealing element fitted to the piston in the fluid end. It maintains the seal against the cylinder liner bore as the piston reciprocates, so wear here directly affects volumetric efficiency.

Pump compatibility

A0413
E0413
L0413

Specifications

Property	Value
Weight	0.03 lb (≈ 0.01 kg, converted)
Width	5.1 cm
Height	5.1 cm
Depth	1.3 cm

Manufacturer technical notes

1-5/8" Abrasive Service Piston Cup (SKU:3267349) Manufactured with HSN hydrogenated nitrile rubber per ASTM D2000-22, Super Blue Emeraldite coating enhances wear resistance, fits FMC BEAN A0413/E0413 mud pumps, pressure resistance ≥80MPa, paired with 5257986 SS washer, salt spray test 1000h corrosion-free

Verbatim from the Dongli product page on dlhddrilling.com.

Replacement / interchange

Aftermarket replacement cross-referencing FMC Bean 3267349.

FAQ

Which pumps does this piston cup fit?: It fits the FMC Bean A0413, E0413, and L0413 models.
What do "abrasive service" and "HSN" mean in the name?: "Abrasive service" indicates the cup is intended for duty handling abrasive fluids; "HSN" is the seal-compound designation given in the product name. Piston cups are a normal wear part whose condition directly affects volumetric efficiency.
What part number does it replace?: It is an aftermarket replacement for FMC Bean part number 3267349; the number is given for identification and cross-reference only and does not indicate OEM manufacture.

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All brand names, model numbers and part numbers are used for identification and cross-reference only and do not imply original-equipment manufacture. This is an aftermarket replacement part.

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