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O-Ring for SAE O-Ring Boss (Straight Thread O-Ring) Fittings & Adapters, 0.38 Inch

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Brand
Hercules Sealing Products
Brand
Hercules Sealing Products
Pack Size
1.00
UOM
EA
I.D.
0.468 in
Materials
Buna-N (90 durometer)
O.D.
0.624 in
Supplier Part Number
568-906
Temperature Range
-30 to +250
Thread Sealant
No
Tube Size
0.38
Product Weight
0.01 lbs
Alternate Part Numbers
Alternate Part Number 3-906/N90, Alternate Part Number 568-906, Alternate Part Number C1CL30, Alternate Part Number H90906, Alternate Part Number MI-08748168, Alternate Part Number MINO-00407X88002
Product Questions & Answers 2

Product Questions & Answers

i’ve got an SAE ORB straight thread fitting for 3/8 tube. is this the right o-ring size or am i barkin up the wrong tree
Question by: Harvey B on Aug 15, 2025, 9:43 AM
For a 3/8 inch tube size ORB fitting or adapter, this one matches that callout and uses a Buna-N material at 90 durometer. The dimensions are 0.468 inch ID, 0.624 inch OD, with a 0.078 inch width, which is what you want to line up when you are matching an ORB seal.
Answer by: Customer Support on Aug 17, 2025, 8:23 AM
Wondering if this o-ring will fit my SAE O-ring boss fitting?
Question by: Hugh M on Dec 31, 2025, 8:47 AM
It is specifically designed for SAE O-ring boss (straight thread O-ring) fittings and adapters, with a 0.38 inch tube size.
Answer by: Customer Support on Jan 2, 2026, 6:19 AM

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