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BSPP ORING 1IN

Description & Features

Designed for use with 1-inch BSPP (British Standard Pipe Parallel) threaded connections, this face seal O-ring provides a reliable static sealing solution in hydraulic systems where leak-free performance is required at threaded ports and fittings. The parallel thread form relies on the O-ring, rather than thread engagement, to achieve the seal, making correct O-ring fitment critical to joint integrity.

Supplied by Adaptall, the BSPP ORING 1IN is sized to suit standard 1-inch BSPP port faces. This type of O-ring is commonly used in conjunction with BSPP adaptors, plugs, and port fittings across hydraulic circuits and fluid power assemblies.

SKU: OR-16-BRITISH

Supplier Part Number (MPN): OR-16-BRITISH

Specifications

Brand adapt-all	Connection Size 1 1 in	Connection Type BSP	Connection Type 1 BSPP	Dimensions 2.5 mm THK	Durometer 90	Fitting Type O-ring	Inside Diameter 1 in	Material Nitrile	Material Construction Nitrile	Series OR Series

Similar Products

Model Number	Inside Diameter	Connection Size 1	Dimensions
OR-12-BRITISH	3/4 in	3/4 in	2.5 mm THK
OR-20-BRITISH	1-1/4 in	1-1/4 in	3.5 mm THK
OR-24-BRITISH	1-1/2 in	1-1/2 in	3.5 mm THK

Product Questions & Answers (2)

Question by: Wayne R on Aug 8, 2025, 10:54 AM

what's the deal with these BSPP o-rings, are they the same as the ones used on NPT fittings or is this a whole different animal?

Answer by: Customer Support on Aug 10, 2025, 6:24 AM

Pretty different, actually. NPT threads seal by wedging the threads together as you tighten, so the thread form itself does the work. BSPP threads are parallel, meaning they don't taper, and the thread engagement alone won't stop fluid from leaking. The o-ring sits against the port face and that's where the seal happens. Swapping one type for the other won't work, so if your fittings or adaptors are marked BSPP, you need an o-ring matched to that spec, which is exactly what this one is sized for.

Question by: Stan K on Jun 25, 2025, 7:07 AM

Just want to make sure, this is for a 1 inch BSPP fitting, right?

Answer by: Customer Support on Jun 27, 2025, 6:01 AM

That's correct. This O-ring is sized to fit standard 1-inch BSPP port faces.