45 Degree ORFS Female Interlock Hydraulic Hose Fitting: 24243-W Series

Why This ORFS Female Interlock Hose Fitting Passes the Compliance Gate

The 24243-W series is an ORFS female interlock hose fitting made for spiral hose assemblies that see high pressure and constant flex. Its interlock attachment grips the wire reinforcement and locks the hose to the fitting, while the flat face and captured O-ring seal metal to metal on the port face. OEM engineers, distributors, and repair shops specify it where a standard braided-hose fitting is not rated for the duty. Every unit is traceable by heat number and pressure tested before shipment.

Core Advantages

• Interlock grip for spiral hose: this ORFS interlock hydraulic hose fitting grabs the wire layers with its attachment to resist pull-out under pressure and flex.
• O-ring face seal reliability: a machined flat face plus elastomer O-ring seals repeatably on SAE J1453 and ISO 8434-3 ports.
• 45 degree routing: the bent body eases plumbing in tight engine, manifold, and frame spaces.
• Heavy-duty size range: four catalog numbers cover 1.3/16″X12 through 2″X12 threads for -12 to -24 spiral hose.
• Traceable quality: batch numbering, material certificates on request, and third-party inspection per order.

Especificaciones técnicas

What Is an ORFS Interlock Hose Fitting?

ORFS means O-Ring Face Seal, the flat-face connection standardized as SAE J1453 and ISO 8434-3. A flat metal face presses against the flat port face and compresses an O-ring set in the face groove; there is no 37 degree cone and no thread sealant. The swivel nut turns freely on the body, so the installer can index the elbow before final torque. An ORFS female interlock hose fitting adds a spiral-hose attachment: instead of a simple crimp over a braided cover, the interlock collar bites the wire reinforcement for a stronger, more fatigue-resistant joint.

Spiral hose carries higher working pressure than braided hose, so its fittings are built to match. The 24243-W body is an ORFS interlock hydraulic hose fitting that pairs the O-ring face seal end with this interlock attachment, and the 45 degree bend keeps the hose path clear. ORFS threads run about one sixteenth larger than the equivalent JIC 37 degree flare, so an ORFS nut will not seat on a JIC port. This family is not interchangeable with ORB (SAE J1926), JIC 37 degree (SAE J514), or SAE 45 degree (SAE J513).

Dimensional Data

Dimensions follow the drawing for the 24243-W variant. Where a symbol carries no printed note, treat the value as dimensioned on the drawing.

The 24243-W drawing lists A, C, E, H, and S2. The table below prints the dimensions in the drawing column order A, C, H, S2, read directly from the specification drawing.

Full Dimension Table (Part Number Matrix)

All part numbers below for this ORFS female interlock hose fitting are for spiral hose. Read each code as series-thread dash-hose dash plus the W interlock suffix: 24243-16-16W is the 1.7/16″X12 interlock body crimped to a -16 spiral hose. Thread E, hose bore DN, dash size, and dimensions A, C, H, and S2 are transcribed exactly as printed.

The drawing lists the 24243-W part numbers with the W suffix that marks the interlock attachment. No braided-hose cross-code note appears on this drawing; the series is the spiral-hose interlock version of the 45 degree ORFS female elbow family.

Material and Heat Treatment

Working Pressure and Operating Envelope

Rated pressure comes from the end connection standard and the hose rating together, not from the fitting alone; use the lower value. The interlock attachment is intended to let this ORFS interlock hydraulic hose fitting match the higher working pressure of spiral hose, but the hose and seal still set the limit. The series is 100% factory pressure tested, and a torque and crimp data sheet for the exact part number ships with each order. Typical service temperature is -40 degree C to +120 degree C; derate for extremes per the hose and seal selected.

Selection and Ordering

How to Read the Part Number Matrix

Choose the ORFS thread E first, then the hose dash that matches your spiral hose bore, and keep the W suffix to specify the interlock attachment. The trailing dash is the hose dash: 24243-20-20W couples a 1.11/16″X12 ORFS female end to a -20 spiral hose. Do not interpolate between listed thread and dash combinations without engineering review. Confirm that your hose construction is compatible with the interlock attachment before ordering.

Thread Size and Dash Chart

Cross Reference Service

Send a photo of the old fitting, the OE part number, or the thread measurement, and we will map it to the closest 24243-W size. Our team translates legacy and OEM part numbers into the standard HENGHUA code and confirms that the interlock attachment suits your hose construction. Cross-reference turnaround is typically within 24 hours.

Packaging and Logistics

The ORFS female interlock hose fitting ships at 10 pcs per box with batch box labels. Cartons carry the country of origin as Made in China, HENGHUA, and each box lists the batch number for traceability. Material test reports travel with the shipment, and third-party inspection can be arranged before dispatch. Custom carton printing and private labeling are available for volume orders.

Assembly and Use Guide

Four-Step Crimping Procedure

1. Cut square: cut the spiral hose perpendicular with a fine-tooth saw and blow out debris.
2. Mark insert depth: mark the insertion depth on the hose cover using the fitting as a gauge.
3. Lubricate and insert: apply compatible lubricant and push the hose fully onto the interlock insert until it bottoms.
4. Crimp and verify: crimp with the correct interlock die, then measure the crimped outside diameter with a caliper against the data sheet.

Connecting the ORFS End

Clean the flat face and the port face of oil, grit, and paint before assembly. Inspect the O-ring for cuts or swelling and replace it if damaged; never reuse a hardened or nicked O-ring. Hand-thread the swivel nut until it seats, then torque it to the supplied data sheet value. Because the nut turns freely, index the 45 degree body to your routing, then hold it while torquing. Do not wrap the threads with PTFE tape or apply sealant.

Installation Warnings

• ❌ Never mix an ORFS flat-face fitting with JIC 37 degree, ORB, or SAE 45 degree seats.
• ❌ Never fit an interlock attachment to a hose construction it was not designed for.
• ❌ Never install without a correct, undamaged O-ring in the face groove.
• ❌ Never reuse an O-ring that is compressed, cut, or aged.
• ❌ Never crimp without the part-specific crimp data sheet.
• ✔ Do clean both faces, verify the O-ring, and torque to the published value.

OEM Customization and Quality Traceability

Customization Options

We laser-mark private labels, cut custom thread sizes, and specify surface finishes such as trivalent zinc, zinc-nickel, or Dacromet to match your corrosion requirement. Mixed thread and hose dash combinations can be produced to drawing in the interlock W construction. OEM packaging and printed box labels are available for volume programs.

Quality and Traceability System

Each batch carries a lot number that follows the parts from raw material through machining, heat treatment, plating, and final test. A 100% pressure test and thread gauge check precede packing, and material test reports ship with the order. Third-party inspection by BV or SGS can be scheduled, and quotes are typically returned within 24 hours.

FAQ

What makes this an ORFS female interlock hose fitting? This ORFS interlock hydraulic hose fitting combines the ORFS flat-face seal end with an interlock attachment that grips the wire reinforcement of spiral hose, giving a stronger, more fatigue-resistant joint than a plain crimp.

What is an ORFS fitting? ORFS means O-Ring Face Seal, a flat-face connection per SAE J1453 and ISO 8434-3. A flat metal face compresses an O-ring into the port face to seal without tape or sealant.

Which hose does the 24243-W fit? The series is built for spiral (interlock) hose in the -12 to -24 dash range. Confirm your hose construction against the attachment before ordering.

How do I tell ORFS apart from JIC or ORB? Look for the flat face with an O-ring groove; JIC 37 degree has a cone and ORB uses a straight thread with an O-ring at the boss. ORFS threads also run about one sixteenth larger than the same-size JIC thread.

Do I need sealant on the threads? No. The seal is made at the flat face by the O-ring, so PTFE tape or thread sealant is unnecessary and can contaminate the system.

Can I reuse the O-ring? Only if it is soft, clean, and free of cuts. Replace any O-ring that is hardened, flattened, or nicked to avoid a leak.

How do I order an ORFS female interlock hose fitting matching an old part? Send the OE number, a photo, or the thread measurement; we cross-reference it to a 24243-W size within about 24 hours.

What pressure does this elbow hold? Pressure is governed by the end connection standard and the spiral hose rating together, plus a 100% factory test on every unit.

Solicitar un presupuesto

Send your thread size, hose dash, quantity, and any cross-reference details, and our team will return pricing and lead time within 24 hours. Request a quote today for an ORFS female interlock hose fitting built to HENGHUA traceability and dependable 45 degree spiral-hose performance.

Browse the full Racores hidráulicos ORFS range for the complete family, or contact us to request a quote, mill test reports, and samples.