1997 K1500 power steering hose O ring dimensions

[Zelda]

All, I'm admittedly green behind the ears. Just had installed a new L31 in my 1997 K1500 Z71, first new engine I've ever owned and I'm a geezer. So, she's no show truck but I'm trying to maker her last and refurb the stuff that is going to keep us on the road. Had a shop R&R the engine for me and it was expensive, so from here on out I'm going to DIY as much refurb as I can 'cuz I got nothing akin to "spare" money lying around.
I plan on attempting to replace most of the rubber suspension / steering components on the front end.
When I change out the pitman arm, I know that to gain access I need to remove the steering box which means disconnecting the power steering hoses. So when I reassemble everything, it would be just plain stupid of me NOT to replace the O rings on the p/s hoses. Does anyone know of the specific dimensions of this particular O ring? I'm led to believe that I should choose Viton as the material, I know that these O rings can be pricey for what they are. I'd like to source from Grainger, McMaster-Carr, or Parker so I need the literal dimensions, e.g. Dash #, ID, OD, cross section width (C/S).
Yep, I'm poor as a church mouse and need to keep costs down. I love the truck, as old as she is, and am trying to ensure road worthiness for the next 20 yrs. Probably my last vehicle (what w/ the crazy prices of vehicles these days!).
If I have to I'll bite the bullet and just overpay, but I have so much cost in front of me I'd rather spend the money elsewhere on the vehicle. Trying to determine the dimensions off of an AC Delco part # is not working out.

 

[east302]

Here are the dimensions from the parts diagram. GM part number on far right.

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[Zelda]

Wow! That was fast! Thank you kindly east302. I knew someone here would pull through for me. What a resource!
This forum has been invaluable to me in gaining knowledge as to parts and how to's. Again, thank you very much!

 

[Zelda]

If I did my calculations right, this should translate into an O ring w/ a "dash #" of 903 (-903). Guess this multi-purpose O ring has had a lot of different GM part numbers over the years. Saw another part # for a different model truck that pointed to the same dash # and physical dimensions but my year truck / model didn't show up in the applications list. Grainger has them in a lot of 25 @ 75 durometer in VITON material for $2.48 before shipping. Luckily, I have a Grainger store right around the corner, gotta love that! I can place an order over the web and they'll have it in stock in a few days. Just got to add tax. Grainger item # is 1CRX7
Yeehaw!

 

[Awest623]

I had the same problem about two weeks ago when I damaged an o-ring replacing my power steering pump and pressure line.

Just pick up a generic pack of o-rings from the parts store, they come in assorted sizes. Find one that looks the same and use it. No leaks and they're rated for pretty much anything.

 

[east302]

Here is the link to those part diagrams. You cannot order from them, but they come in handy.

Spare parts catalog Chevrolet EPC Online > nemigaparts.com

Parts catalogs. Spare parts catalog Chevrolet EPC Online.

nemigaparts.com

 

[GoToGuy]

If look at or search for O ring size chart you get the ID and the ring diameter ( thickness) of the material. Half inch ID by one eighth material. If you have ID and material dimension . The OD isn't important.
You notice the sizes in the description. If you have metric size given if look at Orings chart find the metric size , look left or right on chart to the same size imperial/ sae.
They didn't invert new orings for metric , they just converted the ATSM dash numbers to metric numbers.
Has GM part number because GM beancounters have to know , how much, where, what, why and because where a big bureaucracy we give things our number not industy standard.

 

[Zelda]

Here is the link to those part diagrams. You cannot order from them, but they come in handy.

Spare parts catalog Chevrolet EPC Online > nemigaparts.com

Parts catalogs. Spare parts catalog Chevrolet EPC Online.

nemigaparts.com

Well @east302, that's just awesome! Can't say how much that resource is going to help me moving forward. Will be refurbing most of the front end. Having the OEM part #s sure helps to cross reference parts in the aftermarket. I spend hours tracking parts down and piecing together info as to correct parts for model/year and this is going to help a great deal, speed my research up a lot. What a great forum! Thanks for the link!

 

[Zelda]

I had the same problem about two weeks ago when I damaged an o-ring replacing my power steering pump and pressure line.

Just pick up a generic pack of o-rings from the parts store, they come in assorted sizes. Find one that looks the same and use it. No leaks and they're rated for pretty much anything.

It's a good idea to have a stash. Will see what my local stores have to offer.

 

[Zelda]

If look at or search for O ring size chart you get the ID and the ring diameter ( thickness) of the material. Half inch ID by one eighth material. If you have ID and material dimension . The OD isn't important.
You notice the sizes in the description. If you have metric size given if look at Orings chart find the metric size , look left or right on chart to the same size imperial/ sae.
They didn't invert new orings for metric , they just converted the ATSM dash numbers to metric numbers.
Has GM part number because GM beancounters have to know , how much, where, what, why and because where a big bureaucracy we give things our number not industy standard.

That's kinda what I did. I did not know that ATSM dash numbers were SAE originally. Learn something new everyday! Thanks!