RJT Blind Hexagonal Union Nut with Retaining Chain in 304 Stainless Steel

Ring Joint Type (RJT) blind hexagonal union nut in 304 stainless steel with a closed end face and retaining chain for 1" through 4" RJT pipe unions. Threads onto an RJT male part to blank off a pipeline end without a separate liner.

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

Size

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Component Role & Tethered Hex Blind Design

The RJT blind hex nut combines a closed blanking face and internal RJT union threads into a single hexagonal cap, allowing operators to dead-end an RJT male port without assembling a separate RJT blank liner and open nut. A welded top lug and stainless steel retaining chain keep the blind nut tethered to the pipework when removed for hose hookup or CIP draining.

Material Grade & Dimensional Scope

Manufactured in 304 stainless steel across six nominal tube sizes from 1" (25.4 mm) through 4" (101.6 mm) under part codes RJTBHN25, RJTBHN38, RJTBHN50, RJTBHN63, RJTBHN75, and RJTBHN100, every size shares a uniform nut height A of 22.2 mm. Across the datasheet schedule, across-flats hex width B (A/F) progresses from 50.8 mm (1"), 65.1 mm (1 1/2"), 79.3 mm (2"), and 92.0 mm (2 1/2") up to 104.7 mm (3") and 130 mm (4").

Sealing Interface & Ordering Notes

Tighten the six-flat exterior with a standard RJT hex spanner against a seated RJT O-ring in the mating RJT male part groove. Confirm nominal RJT size (1" to 4") and whether your plant standardizes on hexagonal blind nuts (RJTBHN) or slotted round blind nuts (RJTBSN).