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O-Ring for SAE O-Ring Boss (Straight Thread O-Ring) Fittings & Adapters, 1.50 Inch

Description & Features

Designed for use with SAE O-Ring Boss (straight thread) fittings and adapters, this 1.50 inch replacement seal is molded from 90 durometer Buna-N, providing firm compression and reliable sealing across a service temperature range of -30°F to +250°F. The higher durometer rating offers good resistance to extrusion under pressure, making it well suited for hydraulic fitting applications where dimensional stability under load is important.

The O-Ring for SAE O-Ring Boss (Straight Thread O-Ring) Fittings & Adapters, 1.50 Inch measures 1.956 inches in outer diameter, 1.72 inches in inner diameter, and 0.118 inches in width. Manufactured by Hercules Sealing Products and cataloged under their Split Flange O-Rings product model, this seal is a direct-fit replacement for 1.50 inch ORB-style hydraulic fittings and adapters.

SKU: B-924

Supplier Part Number (MPN): 568-924

Alternate Part Numbers: C1CL37, MI-08748177, MINO-00407X88007

Specifications

Brand Hercules Sealing Products	Brand Hercules Sealing Products	Pack Size 1.00	UOM EA	I.D. 1.72 in	Materials Buna-N (90 durometer)	O.D. 1.956 in	Supplier Part Number 568-924	Temperature Range -30 to +250	Thread Sealant No	Tube Size 1.50	Product Weight 0.01 lbs	Alternate Part Numbers Alternate Part Number C1CL37, Alternate Part Number MI-08748177, Alternate Part Number MINO-00407X88007

Similar Products

Model Number	Tube Size	Materials	Temperature Range	I.D.	Width (E)	O.D.
22617-10 ORB Fitting/Adapter O-Ring	0.625	Buna-N (90 durometer)	-30 to +250	0.755 in	0.097	0.949 in
22617-12 ORB Fitting/Adapter O-Ring	0.75	Buna-N (90 durometer)	-30 to +250	0.924 in	0.116	1.156 in
22617-16 ORB Fitting/Adapter O-Ring	1	Buna-N (90 durometer)	-30 to +250	1.171 in	0.116	1.403 in
22617-4 ORB Fitting/Adapter O-Ring	0.25	Buna-N (90 durometer)	-30 to +250	0.351 in	0.072	0.495 in
22617-6 ORB Fitting/Adapter O-Ring	0.375	Buna-N (90 durometer)	-30 to +250	0.468 in	0.078	0.624 in
22617-8 ORB Fitting/Adapter O-Ring	0.5	Buna-N (90 durometer)	-30 to +250	0.644 in	0.087	0.818 in
B-904 ORB Fitting/Adapter O-Ring	0.25	Buna-N (90 durometer)	-30 to +250	0.351 in	0.072	0.495 in
B-912 ORB Fitting/Adapter O-Ring	0.75	Buna-N (90 durometer)	-30 to +250	0.924 in	0.116	1.156 in
B-916 ORB Fitting/Adapter O-Ring	1	Buna-N (90 durometer)	-30 to +250	1.171 in	0.116	1.403 in
22617-5 ORB Fitting/Adapter O-Ring	0.3125	Buna-N (90 durometer)	-30 to +250	0.414 in	0.072	0.558 in
B-903 ORB Fitting/Adapter O-Ring	0.188	Buna-N (90 durometer)	-30 to +250	0.301 in	0.064	0.429 in
B-906 ORB Fitting/Adapter O-Ring	0.375	Buna-N (90 durometer)	-30 to +250	0.468 in	0.078	0.624 in
B-908 ORB Fitting/Adapter O-Ring	0.5	Buna-N (90 durometer)	-30 to +250	0.644 in	0.087	0.818 in
B-910 ORB Fitting/Adapter O-Ring	0.625	Buna-N (90 durometer)	-30 to +250	0.755 in	0.097	0.949 in
B-914 ORB Fitting/Adapter O-Ring	0.875	Buna-N (90 durometer)	-30 to +250	1.047 in	0.116	1.279 in
B-920 ORB Fitting/Adapter O-Ring	1.25	Buna-N (90 durometer)	-30 to +250	1.475 in	0.118	1.711 in
B-924 ORB Fitting/Adapter O-Ring	1.5	Buna-N (90 durometer)	-30 to +250	1.72 in	0.118	1.956 in

Product Questions & Answers (2)

Question by: Larry W on Apr 1, 2026, 11:12 AM

got an SAE ORB straight thread fitting that takes a 1.50 tube size seal. is this the right o-ring or am i off a size

Answer by: Customer Support on Apr 3, 2026, 6:26 AM

For a 1.50 inch SAE O-Ring Boss straight thread fitting or adapter, this is the direct-fit replacement seal. It’s the Hercules 568-924 (also shown as C1CL37, MI-08748177, or MINO-00407X88007) and measures 1.72 inch ID, 1.956 inch OD, with a 0.118 inch cross section.

Question by: Merle S on Jul 24, 2025, 7:36 PM

Will this O-ring hold up alright in a hydraulic system running around 2000 PSI?

Answer by: Customer Support on Jul 26, 2025, 6:29 AM

With a 90 durometer rating, this Buna-N O-ring is designed to resist extrusion under pressure, making it a good choice for hydraulic fitting applications where dimensional stability is important.