VNS-A4: 4” Straight Single-plane Swivel with 4” TTMA flanged ends - Aluminium.
VNS-A4AVI: Aviation spec 4” Straight Single-plane Swivel with 4” TTMA flanged ends - Aluminium.
LCB4-1: SWIVEL LOADARM BASE 4"STRAIGHT
The VNS-A4 is a 100mm (4”) straight single-plane cast aluminium swivel with 4” TTMA flanged ends.
The VNS swivels are often used on loading arms instead of the coupler spool to enable rotation of the API coupler.