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Home | Hewitt | Aviation Hose Accessories | Aviation Couplings
#Aviation Couplings: Permanent or Reusable Couplings
Aviation Couplings
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.
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Features/Benefits
Permanent Couplings
  • Internally expanded brass and stainless fittings. Stainless available upon request
  • NPT male and NPSH female threads (swivel nuts on female fittings)
  • 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.
Reusable Couplings
  • 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
Adaptors
  • 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
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