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Thanks so much for the response!! Have a great weekend.

Thanks for the responses, it is appreciated. So I should instead be looking for ASTM F837 Gr1, CW1 or 2 depending on my yeild requirements. I am remain uncertain about your comment on material - can I specify 316 material or is the spec open ended? I expect to need the corrosion resistance of...

Hi all, I am dealing with a spec for 'B8M Class 2' socket head cap screws in 10, 12, 14, and 16mm diameters in a couple of different lengths. My purchasing group says they can't find such a thing. High strength fasteners are a new area for me - is this spec nonsense and these don't exist? If...

Thanks for the responses. I have been doing on-line searches, wow, there are a lot of standards out there!!! Specifically, please point me to marine codes for piping and pipe mounted equipment as it pertains to ballasting/deballasting in fresh and seawater cargo ships and tankers. Thanks so...

Hello: My company is in the business of water treament equipment (OEM). We have traditionally been in the industrial/commercial business sectors. We are now looking at designing ballast water treatment equipment for installation on board ocean-going cargo ships. This is completely new to my...

I think part of what you are experiencing is that computers "think" in decimals - and software, unless specially geared for an industry like Architecture, lives in decimals. Mechanical CAD packages have been primarily set-up in decimal form, though there are exceptions. This issue is doubled...

I am not aware of a book or convention that covers what you are asking. I do expect a tape measure to be used when I specify fractions, but I then keep in mind that it is not practical to expect accurate measurements if I specify ±1/64" - I stick 1/16ths typically. To build on what unclesyd...

Thanks Ted. This to an external machine shop and could be quoted anywhere from here to China. I just wanted to ensure that I was creating a port callout on a drawing that was to a known convention without being redundant or double specifying or plain confusing. It seems then there is no...

Thanks for the replies. I think I did not explain myself very well, or this question is so novice it would be assumed obvious (I have simply never needed to specify this before). I just want to know exactly how to specify the port callout on the drawing. Sorry for the rudimentary question...

THanks, I have done so.

I posted this in the piping forum and was advised to post this here... Hello all: I did a search and did not find what I was wanted, I think this is a simple question: I am createing a drawing where a -8 threaded fitting will be installed and I need to specify to the machine shop what the...

Well, perhaps I have posted in the wrong forum? This is a standard hydraulic fluid power fitting. When doing my initial searches I did find references to this SAE port in this forum. This seemed like the correct forum by description, please direct me if I have made a mistake. Thanks, Ron

Hello all: I did a search and did not find what I was wanted, I think this is a simple question: I am createing a drawing where a -8 threaded fitting will be installed and I need to specify to the machine shop what the machined hole will be. Is it as simple as a leader with "SAE J1926 -8"? I...

Thanks Norm. I have heard (in particular to the original question in this thread) that the internal rail shifting of the tremec is quite a different feel compared to external rod linkages on other transmissions like a Munice or Saginaw. What is your opinion Norm?

Norm: I am curious about what car you are referring to that you have.. I have been consdering changing my Muncie for a new tremec TKO600. Any advice? Ron

It is tough to seal air without leaks no doubt. No expereince here, just a recollection that I saw in machine design magazine once a diaphragm seal that rolled back and forth - might have been used inside a cylinder. A quick net search found this...

I have had shaft surface finish as an issue, and also seal material change by supplier (durometer, use of regrind in raw material, shipped different material by accident) and also a seal that measures ok with quick caliper inspection, but an optical comparator showed the average ID was to large...

Thank-you very much, there was a lot of good info there. The gaskets pcitured there look different than the ones I am using - those have an added lip on the outside. I am not sure if this is the British Standard difference from the 3A standard I am looking at or not. I have since found...

This is the type of fittings I am referring to: (ADOBE PDF FILE) http://www.swagelok.com/downloads/webcatalogs/MS-03-05.pdf

I am looking for the standard or technical document that descibes the machining details for these fittings. For example, I need to design a custom ferrule to mate to a standard sanitary ferrule and need to obtain the o-ring groove details etc. Any help appreciated. Ron