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O-Ring for SAE O-Ring Boss (Straight Thread O-Ring) Fittings & Adapters, 0.75 Inch

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Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Pack Size
1.00
UOM
EA
I.D.
0.924 in
Materials
Buna-N (90 durometer)
O.D.
1.156 in
Supplier Part Number
568-912
Temperature Range
-30 to +250
Thread Sealant
No
Tube Size
0.75
Product Weight
0.01 lbs
Alternate Part Numbers
Alternate Part Number 3-912, Alternate Part Number 568-912, Alternate Part Number C1CL33, Alternate Part Number H90912, Alternate Part Number MI-08748175, Alternate Part Number MINO-00407X88005
Product Questions & Answers 4

Product Questions & Answers

What size o-ring is this? I need one for a .75 inch tube.
Question by: Warren W on Dec 11, 2025, 7:55 PM
This O-ring is designed for SAE O-Ring Boss fittings and adapters with a 0.75 inch tube size.
Answer by: Customer Support on Dec 13, 2025, 7:07 PM
Will this O-ring work on a 3/4 inch SAE fitting?
Question by: Kirk E on Aug 9, 2025, 5:54 PM
This O-ring is designed to fit a 0.75 inch SAE O-ring boss (straight thread O-ring) fitting or adapter.
Answer by: Customer Support on Aug 10, 2025, 6:17 PM
i’ve got a 3/4 ORB straight thread fitting, is this the right o-ring size or am i gonna be fighting leaks
Question by: Kurt A on Jun 23, 2025, 10:32 AM
For a 0.75 inch tube size SAE O-Ring Boss setup, this O-ring is the matching ORB fitting and adapter seal size. It is Buna-N at 90 durometer with a 0.924 inch ID and 1.156 inch OD, which is what sets the fit on the boss.
Answer by: Customer Support on Jun 25, 2025, 6:58 AM
what size tube is this o-ring meant to go with? got a 3/4 inch ORB fitting and want to make sure i'm grabbing the right one
Question by: Joyce J on Sep 21, 2025, 9:27 AM
For a 0.75 inch SAE O-Ring Boss fitting, this is the correct o-ring. The inside diameter runs 0.924 inches, the outside diameter is 1.156 inches, and the width comes in at 0.116 inches. Those dimensions are built specifically for straight thread ORB fittings and adapters at that tube size, so you're in the right place.
Answer by: Customer Support on Sep 23, 2025, 6:28 AM

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