623 16-22 mm 2 Pcs Hex Nut Brass Bulkhead Coupling ISO9001 IATF16949 CCC

Quick Detail

Product Name: Brass Bulkhead Coupling

Series: 623

Part No. 1: 623 7615

Lock Nuts: 2 Pcs Hex Nut

Quality: ISO9001, IATF16949

Panel Hole Dia: 16-22 mm

HS Code: 7412.20

· Two Hex Nuts, One Clean Through-Joint: The coupling is supplied with two hex nuts, so it clamps through a 16-22 mm panel hole from both sides and the tube crosses the bulkhead without an extra union, bracket or clamp.

· 623 Series, Brass Body: Part 623 7615 in the 623 series is machined from brass for air brake lines, produced under ISO9001 and IATF16949 quality control, and classified under HS code 7412.20 for brass pipe fittings.

Description

Brass Bulkhead Coupling for routing air brake and pneumatic lines through a chassis panel, frame or bulkhead on commercial vehicles. The coupling is supplied with two hex nuts, so it clamps through a 16-22 mm panel hole from both sides and the tube crosses the bulkhead without an extra union, bracket or clamp, while the straight brass body keeps the tube run in line and free of side load.

Push-in ends seat PA11, PA12 and PU air brake tube by hand, which matches the lines used on bus, truck, trailer and semi-trailer brake circuits, including ABS / EBS and air suspension. Because the coupling can be released and refitted, line repairs and panel rework do not need new hardware. Supplied as part number 623 7615 in the 623 series, it is produced under ISO9001 and IATF16949 quality control, with dimension and thread inspection before packing, so each batch assembles the same way on the line and in the workshop.

The brass body resists condensation, road salt and oil mist, keeps its strength and thread accuracy from cold start to hot engine bay conditions, and is classified under HS code 7412.20 for brass pipe fittings, which keeps export documentation straight for distributor and OEM programs. The coupling is engineered for high frequency fleet maintenance and OEM replacement, and is packed neutral or with custom marking.

Specifications

Notices

Open the packaging carefully, inspect the coupling body, sealing ring and tube ends for scratches or damage, and handle gently to avoid surface scratch or seal damage. Do not pull forcibly or bend sharply during installation to avoid safety risks of connection loosening and seal cracking. Installation should be performed by qualified personnel to ensure correct assembly, stable sealing performance, and service safety.