Which pumps does this back cover gasket fit?

It is sized to fit the FMC Bean M12 series, specifically the M12 and M1224 models.

What does this gasket do in the pump?

It seals the bolted joint at the fluid-end back cover, keeping pumped fluid contained and preventing leakage between the cover and its mating face.

What part number does this replace?

It is an aftermarket replacement for FMC Bean part number 5262847. The reference is for cross-identification only and does not indicate OEM origin.

Back Cover Gasket for FMC Bean M12 Series

Back Cover Gasket for FMC Bean M12 Series — Gasket aftermarket replacement part

This back cover gasket seals the bolted joint at the back cover of the fluid end on FMC Bean M12 series reciprocating pumps. Positioned between the cover and its mating face, it contains pumped fluid and prevents leakage at that joint. It is sized to fit the M12 and M1224 pump models. The part is an aftermarket replacement for FMC Bean SKU 5262847; the brand and part number are listed for identification and cross-reference only and do not imply OEM manufacture.

What it is

A gasket seals a bolted or clamped joint between two faces to prevent leakage of fluid, oil or pressure.

Pump compatibility

M12
M1224

Specifications

Property	Value
Weight	0.11 lb (≈ 0.05 kg, converted)
Width	45.2 cm
Height	30.0 cm
Depth	0.2 cm

Manufacturer technical notes

Back Cover Gasket for FMC Bean M12 Series (SKU:5262847) Complies with ASTM D2239-22 HNBR rubber (acrylonitrile content ≥40%), Shore A 75±5 hardness, secondary vulcanization (160°C×90min) enhances thermal resistance (-40°C~150°C). Phosphated coating (salt spray tested >1500hrs corrosion-free), API 7K compliant. Sealing surface Ra0.4μm roughness, burst pressure ≥120MPa, leakage rate <0.01ml/min.

Verbatim from the Dongli product page on dlhddrilling.com.

Replacement / interchange

Aftermarket replacement cross-referencing FMC Bean 5262847.

FAQ

Which pumps does this back cover gasket fit?: It is sized to fit the FMC Bean M12 series, specifically the M12 and M1224 models.
What does this gasket do in the pump?: It seals the bolted joint at the fluid-end back cover, keeping pumped fluid contained and preventing leakage between the cover and its mating face.
What part number does this replace?: It is an aftermarket replacement for FMC Bean part number 5262847. The reference is for cross-identification only and does not indicate OEM origin.

Related parts

See all Gasket →

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.

Need a quote or part lookup? Contact our team.