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DIXON · Petroleum hose fittings

Dixon API Certified Permanently Attached Coupling

API Certified Permanently Attached Coupling from Dixon, in 4 sizes and with Buna Washer. 8 part numbers listed — supplied by Yash Enterprise, an authorized Dixon distributor in Mumbai.

Dixon API Certified Permanently Attached Coupling
Dixon API Certified Permanently Attached Coupling — illustrative; check the part number for the exact variant.

Key features

  • Thread: NPT
  • Thread: NPSM

All part numbers (8)

Size, material and part number for every item in this range. Parts are supplied on request. We confirm availability and price within 24 hours.

8 part numbers
Part no.SizeMaterialQuote
API Certified Permanently Attached Coupling — 520-H Series Female 4
H5241L-A-BU2 inchwith Buna Washer
H5251L-A-BU2½ inchwith Buna Washer
H5261L-A-BU3 inchwith Buna Washer
H5281L-A-BU4* inchwith Buna Washer
API Certified Permanently Attached Coupling — 520-H Series Male 4
H5242L-A2 inch
H5252L-A2½ inch
H5262L-A3 inch
H5282L-A4* inch

Not sure which part you need? Send us the equipment and rating on WhatsApp and we will recommend the exact part.

Common questions

Which sizes and materials does the Dixon API Certified Permanently Attached Coupling range come in?

This range has 8 part numbers in 4 sizes, in with Buna Washer. Every part number is listed in the table above — filter by size or material, or search by part number.

How do I order Dixon API Certified Permanently Attached Coupling?

Pick the part from the list, then request a quotation. There is no minimum order — single pieces and project quantities are quoted the same way, and we confirm availability and price within 24 hours.

Are these genuine Dixon products?

Yes. Yash Enterprise is an authorized Dixon distributor; every part is sourced through the principal brand, with the manufacturer's standard warranty passed through.

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