The HOKE GYROLOK bulkhead adapter is a panel-mounted fitting that connects a tube to a port. The BA connects a fractional tube to a fractional port, and the BA/MM connects a metric tube to a metric port.


| Type | Bulkhead adapter: BA (connects a fractional tube to a fractional port) / BA/MM (connects a metric tube to a metric port) |
| Part Numbers | BA: 2BA2[ ] ~ 16BA16[ ] / BA/MM: 3BA3[ ]MM ~ 25BA25[ ]MM |
| Material (GYROLOK series) | Material code in the [ ] of the part number: brass BR, 304/304L stainless steel, 316/316L stainless steel, Monel M, Hastelloy C-276 HC, Duplex 2205 DX3, Inconel Alloy 625, Inconel Alloy 825, Super Duplex 2507 D50, titanium TI, 254 SMO 6MO (available materials may vary by fitting type and size) |
| Dimensions (inches): BA Overall Length A, Panel Hole Size and Max. Panel Thickness by Tube O.D. | tube 1/8": A 2.09, panel hole .33, max. panel thickness 7/16 / tube 3/16": A 2.16, panel hole .39, max. panel thickness 15/32 / tube 1/4": A 2.27, panel hole .45, max. panel thickness 15/32 / tube 3/8": A 2.50, panel hole .58, max. panel thickness 17/32 / tube 1/2": A 2.94, panel hole .77, max. panel thickness 17/32 / tube 5/8": A 3.09, panel hole .89, max. panel thickness 9/16 / tube 3/4": A 3.38, panel hole 1.02, max. panel thickness 21/32 / tube 7/8": A 3.63, panel hole 1.14, max. panel thickness 25/32 / tube 1": A 4.14, panel hole 1.33, max. panel thickness 1 1/32 |
| Dimensions (mm): BA/MM Overall Length A, Panel Hole Size and Max. Panel Thickness by Tube O.D. | tube 3 mm: A 55.1, panel hole 8.3, max. panel thickness 12.0 / tube 4 mm: A 56.7, panel hole 10.0, max. panel thickness 12.0 / tube 6 mm: A 58.7, panel hole 11.5, max. panel thickness 13.0 / tube 8 mm: A 62.9, panel hole 13.1, max. panel thickness 14.0 / tube 10 mm: A 64.1, panel hole 16.5, max. panel thickness 14.0 / tube 12 mm: A 75.4, panel hole 19.5, max. panel thickness 16.0 / tube 14 mm: A 75.0, panel hole 19.5, max. panel thickness 16.0 / tube 16 mm: A 79.0, panel hole 22.5, max. panel thickness 14.0 / tube 18 mm: A 86.0, panel hole 26.0, max. panel thickness 17.0 / tube 22 mm: A 92.0, panel hole 29.5, max. panel thickness 24.0 / tube 25 mm: A 105.0, panel hole 33.8, max. panel thickness 24.0 |