In order to meet and comply with EI 1529 and EN ISO 1825 specifications, all Hewitt® aviation hoses are supplied with either permanent or reusable couplings.
- Internally expanded brass and stainless fittings. Stainless available upon request
- NPT male and NPSH female threads (swivel nuts on
- Swaged stainless male NPT insert with zinc-plated ferrule (Standard on 4” only)
- 4” internally expanded brass male NPT and NPSH female inserts are available as options.
- 4-bolt aluminum clamps with brass, tin-plated brass or stainless inserts
- NPT male, NPSH female, BSP male and BSP female threads (swivel nuts on female fittings)
- Reusable fittings are available as separate items on request
- Any of the above fittings can be supplied with adaptors such as Cam & Groove and threaded flanges
- Dixon “Boss” Cam & Groove fittings are USA made. Imported versions are available
- Stainless, brass, and aluminum step-up bushings
- Stainless, carbon steel and aluminum threaded flanges