Una volta li prendevo da BMW. Poi sono andato da un negozio buono di oleodinamica con quello vecchio e me ne ha dati 10 per 2 euro (meno di un decimo di BMW). Infine li ho visti in sacchetti enormi da un meccanico verdi.
Se ne vuo comprare un sacchetto e poi dispensarli, credo sia la cosa migliore.
Oppure vai da un rinveditore ben fornito di oleodinamica, e te ne fai dare un pochi.
Li trovi su Aliexpress o siti di questo tipo in sacchi da 500.
Sotto dei dati. Chi me li ha venduti, li aveva guardati un poco ad occhio e poi con il calibro. Con i decimali, su un pezzo di gomma, non saprei che ci fa il calibro. Per far entrare l'attacco era duro.
Secondo me sono questi
https://www.ebay.it/itm/274319530890Ricordati di VItton o FPM.
diametro interno 7,9 mm, diametro esterno 12 mm. spessore 1.8
7,65 mm x 1,78 mm 75 FPM Viton
"I bought a bag of 500 of them for cheap, ~$3.50 IIRC. If you want a couple, let me know but, BBY is probably faster."
"Def, sorry for butting in here but I have this info to offer: from post #18 in this thread in a different forum (
http://www.i-bmw.com/showthread.php?t=2405) the fuel QD o-rings are standard size 2-011, nominal size 5/16th ID X 1/16th Cross Section X 7/16th OD."
"Different vendors have different stock numbers but the 2-011 O-ring number is a Parker standard, used worldwide, and you can get this O-ring in Viton anywhere that sells O-rings. There are metric equivalent size numbers available at sites such as this:
https://www.darcoid.com/userfiles/proje ... -sizes.pdf , should you need."
"
Def, o-ring size identification is generally per AS568A and is the number after the dash (-), in this case -011. See AS568A size numbering at:
http://www.allorings.com/size_cross_ref ... framed.htm . The prefix of an o-ring number is typically a manufacturer or vendor number. An example is the number 2 in my earlier post, which is a Parker number. Other o-ring manufacturers and vendors use other numbers for prefix and sometimes suffix but the o-ring size is almost always per the AS568A standard, a dash (-) followed by 3 numbers. Again, see the AS568A size chart at the vendor link for "allorings" above. I tried a search for 8-011 o-ring and got no helpful hits.
When looking for O-rings of a particular dimension I first get the AS568A number, usually by measuring an existing o-ring, and look locally. If local hydraulic hose, tubing and fitting vendors don't stock and don't want to order 1000 just to sell me 2ea, I hit an interweb search engine with something like: "o-ring AS568A dash number -011 viton 75" and can usually find a source that will sell in smaller quantities, depending on o-ring size. At McMaster Carr, for instance,
this particular o-ring size in 75 durometer Viton sells for less than $7 for a bag of 100.
Pollici:
"The o ring I ordered is a 008 size which is listed as nominal 3/16 X 5/16 X 1/16, Buna, 75 duro.
I think I'll measure the OE o-ring on the QD and confirm I have the correct size."