Stainless 316 Mbspp Hex Plug

Description & Features

Manufactured from 316 stainless steel, this male BSPP hex plug is designed to seal hydraulic and fluid power circuits by closing off unused ports. The G 1/2 - 14 thread (1/2" BSPP male) and hex drive profile allow for easy installation and removal with standard tools. With an overall length of 24.2mm and a 27mm hex width across flats, it suits compact port configurations where reliable sealing is required.

The Stainless 316 Mbspp Hex Plug is supplied by Adaptall and is well-suited for use in systems handling corrosive media or harsh environments where stainless construction offers a clear advantage over carbon steel alternatives. The BSPP thread form provides a pressure-tight seal when used with appropriate sealing methods at the thread face.

SKU: SS9030-08

Supplier Part Number (MPN): SS9030-08

Specifications

Connection Size 1
1/2 in
Connection Type
Male BSP
Connection Type 1
Male BSPP
Dimension Standards
BS 5200, ISO 1179, ISO 8434-6
Dimensions
23 mm L
Fitting Type
Plug
Hex Size
27 mm
Material
Stainless Steel
Material Construction
316 Stainless Steel
Series
SS9030 Series
Thread Size
1/2-14

Product Questions & Answers (2)

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Question by: Darryl B on Nov 4, 2025, 10:24 AM
Got a port on a hydraulic manifold I need to close off, would this plug work for a half-inch BSPP opening?
Answer by: Customer Support on Nov 5, 2025, 7:47 PM
Yeah, that's exactly what this one's built for. The thread is G 1/2 - 14, which is your standard half-inch BSPP male thread, so it'll seat right into a female BSPP port and seal it off. At 24.2mm long with a 27mm hex, you've got enough to get a wrench on it without a lot of fuss. Just make sure you're using the right sealing method at the thread face since BSPP is a parallel thread and relies on a face seal or sealant rather than thread taper to hold pressure.
Question by: Ronnie A on Sep 24, 2025, 9:53 PM
got a port with G 1/2 - 14 threads, is this the right plug to cap it off?
Answer by: Customer Support on Sep 26, 2025, 8:31 AM
For a G 1/2 - 14 female BSPP port, this plug matches that thread as a 1/2 inch BSPP male. It is meant to close off unused ports and seals at the thread face when you use the appropriate BSPP sealing method.

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