The Racetronix FIT-CP4FSS is a complete straight -4 AN JIC female crimp hose end for -4 smooth-bore PTFE hose, as a kit of the three stainless steel parts: the FIT-CP4SS crimp end, the FIT-CPNUT4SS tube nut and the FIT-CP4CSS crimp collar.

Key features

• Kit of three parts: crimp end FIT-CP4SS, tube nut FIT-CPNUT4SS, crimp collar FIT-CP4CSS.
• AN end: -4 AN JIC female, 7/16"-20, 37° flare.
• Crimp: collar 11 mm before crimping; crimp to 9.61 mm on TFT-1167 and TFT-1170 hose.
• Stainless steel.

Specifications

Current production may vary from the image.

The AN end seals metal to metal on its 37° flare, not on the threads. Do not put Teflon tape or thread sealant on it.

Making a crimp assembly

1. Tape, then mark. Wrap masking tape tightly around the hose where you will cut, so the braid does not fray, then measure and mark the cut on the tape, allowing for the length each fitting adds.
2. Cut square through the mark with a thin cut-off wheel (the thin Bosch wheels work well), not a thick grinding wheel. Remove the tape and trim any stray braid wires flush.
3. Trim back any coating. On black covered (B) hose, cut the Hytrel or PVC coating back from the crimp area so the collar sits directly on the braid.
4. Clean the hose. Blast the cut end and the bore with brake cleaner, then blow it out with compressed air to clear all cutting debris.
5. Slide the collar onto the hose.
6. Push the nipple fully into the hose until the hose bottoms against the fitting, then bring the collar up against the fitting so it covers the nipple.
7. Line up angled ends first. Once crimped, the fitting cannot be turned on the hose, so line the angle up with the other end of the assembly and mark the hose and fitting before you crimp.
8. Crimp with a die that covers the collar size, following your crimper’s instructions, to the finished outside diameter in the crimp chart for your hose.
9. Measure the crimp with calipers in at least three places around the collar and compare it with the chart. If it is under size (over-crimped), cut it off and make a new end.
10. Flush and cap. Blow the finished assembly through with solvent and compressed air, cap both ends until it is installed, and pressure-test it before use.

Crimp chart: stainless collars on Racetronix -3 and -4 PTFE hose

Collar size before crimping and the finished outside diameter after crimping on Racetronix TFT-1167 and TFT-1170 hose. Use the wide collar on our -3 hose; the narrow collar is a tight fit on it. Crimp data for the short (-T) collars and the -6 stainless collar is not published yet: email us before ordering.

All Racetronix PTFE crimp fittings

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.

See all PTFE crimp fittings, reusable PTFE hose ends and Racetronix PTFE hose.

Frequently asked questions

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.