How do I fit the AS512-NA70000N00101-A?

No tools, a few minutes: 5 steps, listed on this page with the replacement video where the maker has one.

What happens if I don't change it?

A stretched or torn valve or membrane lets the suction drop, so each session takes longer.

Breast pump valve

Momcozy S12 Pro Quick duckbill valve and diaphragm set

AS512-NA70000N00101-A

Fits 1 model · replace every 3 months

Wrong part, or your model missing? Tell us. A person checks every report.

GenuineGenuine Momcozy

$15.99

Momcozy Australia · 1 NovLowest genuine · Momcozy Australia · checked 1 Nov

CompatibleCompatible option

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No compatible seller tracked yetNo compatible seller tracked yet

Genuine: made by Momcozy. Compatible: another brand.Genuine is made by Momcozy. Compatible is made by another brand. Check the seller's page for the size and models it fits.

Lowest price · $15.99

Momcozy Australia. Every seller we track is listed below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.

Open Momcozy Australia · $15.99

Compare 1 seller

AUD, before delivery. Each price shows when it was checked.

Genuine Momcozy

1 seller

Momcozy AustraliaGenuine · checked 1 NovGenuine part · Lowest genuinechecked 1 Nov$15.99OpenGo to seller

Open cheapest seller · $15.99

Opens Momcozy Australia in a new tab. Their page is the source of truth for price, delivery and returns.

How long it lasts

Usually every 3 months (Momcozy says; sooner if it is worn, frayed or stretched, or suction drops).

After replacing: No reset: the pump has no reminder for this part, so set your own.

Not due yet?

Get a nudge when your breast pump valve is due — it's every 3 months. One email two weeks before, no newsletter. Manage or stop it anytime.

How to change the AS512-NA70000N00101-A breast pump valve

Watch the guide or follow the steps.

No clear video for this part yet. The steps cover it.

1Wash your hands, take the pump off and separate the milk collector, flange and silicone parts.
2Remove the old diaphragm and check the other silicone parts for cracks, tears or stretching.
3Before first use, wash the new diaphragm and boil it for 5 to 10 minutes, then let it air dry.
4Fit the new diaphragm in the same place as the old one, so it sits snugly and lies flat.
5Reassemble the pump and check for leaks or low suction before pumping.

Every number this part goes byAS512 · AS512-NA70000N00101-A · Momcozy S12 Pro Quick diaphragm · S12 Pro Quick diaphragm

Retail name:: AS512
Retail name:: AS512-NA70000N00101-A
Retail name:: Momcozy S12 Pro Quick diaphragm
Retail name:: S12 Pro Quick diaphragm

Sellers list any of these; they are the same part.

Will it fit your appliance?

Type your model number and we'll check it against the makers' lists.

Your appliance model

Fits this Momcozy modelS12 Pro Quick

Momcozy1 model

S12 Pro Quick

Common questionsWhat does the AS512-NA70000N00101-A fit? · How often should I replace the AS512-NA70000N00101-A? · Where can I buy the AS512-NA70000N00101-A in Australia?

What does the AS512-NA70000N00101-A fit?: The Momcozy S12 Pro Quick duckbill valve and diaphragm set (part AS512-NA70000N00101-A) fits the Momcozy S12 Pro Quick.
How often should I replace the AS512-NA70000N00101-A?: Every 3 months, or sooner if it looks worn.
Where can I buy the AS512-NA70000N00101-A in Australia?: We track 1 Australian seller for the AS512-NA70000N00101-A; the lowest listed price when we last checked was A$15.99 at Momcozy Australia. Prices are re-checked daily and dated on this page.
How do I fit the AS512-NA70000N00101-A?: No tools, a few minutes: 5 steps, listed on this page with the replacement video where the maker has one.
What happens if I don't change it?: A stretched or torn valve or membrane lets the suction drop, so each session takes longer.
Is there anything to reset afterwards?: No reset: the pump has no reminder for this part, so set your own.

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