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Adapter, 1/8" MPT » 5/32" Barb (REG)

Quick Overview

  • Adapter, 1/8 inch NPT male to 5/32 inch barb
  • Regulator vacuum and boost port nipple
  • Sealant on the NPT threads only
  • Secure the hose with a clamp
  • 304 stainless steel

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Item #: ADF-B18N532SS

$9.11

per EACH (USD)
This is an obsolete Item
 
 
 In Stock & Ready to Ship

Adapter, 1/8" NPT Male to 5/32" Hose Barb, Stainless Steel

Converts a 1/8" NPT port to a 5/32" hose barb.

The Racetronix ADF-B18N532SS connects 5/32" ID rubber hose to a 1/8" NPT port. It is the stainless vacuum/boost port nipple used on Racetronix fuel pressure regulators, also sold as a replacement and for other small vacuum lines.

Key features

  • 1/8"-27 NPT male.
  • 5/32" hose barb for rubber hose.
  • 304 stainless steel.
Sealing

The NPT thread is tapered and seals on its threads: use a fuel-safe thread sealant (PTFE paste) on the male NPT threads, keeping it off the first thread. Push the hose fully over the barb and secure it with a suitable hose clamp.

Specifications

Part numberADF-B18N532SS
NPT end1/8"-27 NPT male, tapered
Barb5/32" hose barb for rubber hose
Material304 stainless steel

Lookup chart

Every part in this series. This part is highlighted. Click a column heading to sort by it; click again to reverse. On a phone, swipe the chart sideways.

Part numberNPT maleBarb size
ADF-B18N532SS1/8"-27 NPT5/32"
ADF-B316N181/8"-27 NPT3/16"
ADF-B14N181/8"-27 NPT1/4"
ADF-B516N181/8"-27 NPT5/16"
ADF-B38N181/8"-27 NPT3/8"
ADF-B316N141/4"-18 NPT3/16"
ADF-B14N141/4"-18 NPT1/4"
ADF-B56N141/4"-18 NPT5/16"
ADF-B38N141/4"-18 NPT3/8"
ADF-B56N383/8"-18 NPT5/16"
ADF-B38N383/8"-18 NPT3/8"
ADF-B12N383/8"-18 NPT1/2"
ADF-B58N383/8"-18 NPT5/8"
ADF-B38N121/2"-14 NPT3/8"
ADF-B12N121/2"-14 NPT1/2"
ADF-B58N121/2"-14 NPT5/8"
ADF-B34N121/2"-14 NPT3/4"
ADF-B34N343/4"-14 NPT3/4"
ADF-B1N343/4"-14 NPT1"
ADF-B1N11"-11.5 NPT1"

Frequently asked questions

Do I need thread sealant?

Yes, on the NPT threads only. NPT is a tapered thread that seals on the threads.

Questions and support

Not sure which fitting your build needs? Email [email protected] before you order.

Racetronix provides technical support to verified customers through our support forum, not by phone or email. Please request forum access when you place your order so your account is approved before your parts arrive. The forum is moderated, open 24/7, and holds a knowledge base going back to 1999.

© 2026 Racetronix. All rights reserved. | Part No: ADF-B18N532SS | Revision: Alpha
Item #:FIT-PL1032R
$3.31
In Stock