RJT Blind Slotted Round Union Nut with Retaining Chain in 304 Stainless Steel

Ring Joint Type (RJT) blind slotted round union nut in 304 stainless steel with a closed end face, external C-spanner slots, and a retaining chain for 1" through 4" RJT pipe unions. Caps off an RJT male part directly.

Material options	304
Size range	1"–4" (25.4–101.6 mm)
Connection	RJT Female Thread (Blind Union Nut)
Shape	Round Slotted (Closed Blind Nut with Chain)
Interface series	RJT

Size

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Component Role & Slotted Round Tethered Blind Design

The RJT blind slotted nut provides a circular C-spanner alternative to the hexagonal RJT blind nut for capping off Ring Joint Type (RJT) male union ports. Its closed top face removes the need for a separate blank liner, while a central eye lug and stainless steel retaining chain keep the cap tethered to the line during hose changes or washdown.

Material Grade, Outer Diameter & Slot Specifications

Supplied in 304 stainless steel across six nominal sizes from 1" (25.4 mm) through 4" (101.6 mm) under part codes RJTBSN25, RJTBSN38, RJTBSN50, RJTBSN63, RJTBSN75, and RJTBSN100, every size has an axial body height A of 22.2 mm. Across the datasheet table, outer diameter B spans 58.5 mm (1"), 72.5 mm (1 1/2"), 87 mm (2"), 99.5 mm (2 1/2"), 112.5 mm (3"), and 138 mm (4"), with external slot configurations C of 4×8 mm on 1"–1 1/2", 6×8 mm on 2"–2 1/2", and 6×10 mm on 3"–4".

Spanner Engagement & Ordering Notes

Use a hook spanner (C-spanner) matched to the 8 mm or 10 mm peripheral slots to tighten the blind nut against the O-ring seated in the mating RJT male part. Verify nominal RJT size (1" to 4") when ordering.