What the 432-23031-1 Does
The Lincoln 432-23031-1 threaded sleeve is the outer compression sleeve of the reusable three-part KF300 hose end used in Quicklub centralized lubrication systems. It is an aftermarket replacement part that screws onto the matching hose stud with ordinary hand tools, compressing the KF300 hose wall into a reliable seal. Lincoln is a trademark of its respective owner. This is an aftermarket sleeve, not manufactured, sponsored, or endorsed by Lincoln. 432-23031-1 designations are for cross-reference identification only.
The sleeve is a wrench-assembled component, not a press-fit or swaged collar. It slides over the KF300 plastic hose, engages the claw-groove section of the stud, and tightens by wrench to form the hose-end connection. No hydraulic press or crimping tool is required for assembly or disassembly.
Specifications
| Part number | 432-23031-1 |
| Type | Threaded compression sleeve |
| Hose size | KF300 high-pressure plastic hose, 8.6-8.75 mm OD |
| Material | Steel |
| Finish | Zinc-plated or black, varies by batch; confirm variant when ordering |
| Length | About 28 mm |
| Hex | 12 mm |
| Pressure rating | Up to 350 bar when assembled with matching studs on KF300 hose |
How the Three-Part Hose End Works
The reusable KF300 hose end consists of three parts: a hose stud, the 432-23031-1 threaded sleeve, and the KF300 hose itself. The stud inserts into the hose bore, the sleeve slides over the hose from the opposite direction, and the sleeve then screws onto the stud’s claw-groove section. Tightening the sleeve by wrench compresses the hose wall between the stud and the sleeve, creating the seal and mechanical grip.
Typical tightening torque is 15-25 Nm, applied with ordinary wrenches. The connection can be disassembled with wrenches: sleeve and stud are reusable if undamaged. Cut a fresh hose end before reassembly because the compressed section will not reseal reliably.
Matching Hose Studs
| Part number | Description |
| 432-24162-1 | Straight short hose stud, 21.5 mm; see straight hose studs for more straight variants. |
| 432-23067-1 | Straight long hose stud, 30 mm; compatible with the same KF300 sleeve. |
| 532-30739-1 | 90 degree short hose stud, 37 mm length, 28 mm drop; see the 90 degree short hose stud for details. |
| 532-30738-1 | 90 degree long hose stud, 53 mm; used where a longer drop is needed. |
Stainless steel sleeve alternative: 432-23676-1 for corrosive environments. All studs listed work with this 432-23031-1 threaded sleeve and KF300 hose.
Assembly Steps
First, cut the KF300 hose end square and burr-free so the stud inserts fully without shaving the inside wall. Slide the 432-23031-1 threaded sleeve onto the hose before inserting the stud, since the sleeve cannot pass over the stud once the stud is seated.
Push the hose fully onto the stud until it bottoms out. Then thread the sleeve onto the stud’s claw-groove section and tighten by wrench, typically 15-25 Nm. Pressurize the system and inspect the connection for any leakage before returning to service. For fit confirmation or quantities, use our contact form.
Threaded Compression vs Push-In Fittings
Threaded compression sleeves like the 432-23031-1 are intended for fixed high-pressure lubrication runs where the hose end stays assembled for long periods. They use a wrench-tightened threaded collar to compress the hose onto the stud, making them suitable for 350 bar working pressure on KF300 hose.
Push-in tube unions are tool-free and faster to connect, but they are typically chosen for serviceable connections or lower-pressure lines. See push-in tube unions for comparison. For corrosive environments, use the stainless steel sleeve 432-23676-1 instead of the zinc-plated or black steel version.
Frequently Asked Questions
What exactly is the 432-23031-1?
The 432-23031-1 is the outer threaded compression sleeve only. The hose stud and KF300 hose are sold separately.
Does the 432-23031-1 have an M12x1.5 external port thread?
No, the sleeve has no external M12x1.5 port thread. The threaded name refers to the assembly thread that engages the stud.
How do I install the 432-23031-1 sleeve?
Use ordinary wrenches and tighten to 15-25 Nm typical. No hydraulic press, swaging tool, or crimping is needed.
Can the sleeve and stud be reused after disassembly?
Yes, both sleeve and stud are reusable if undamaged. Always cut a fresh hose end before reassembly.
What hose does the 432-23031-1 fit?
It fits KF300 high-pressure plastic hose with 8.6-8.75 mm outside diameter. Other hose sizes will not seal.
Which hose studs match the 432-23031-1 sleeve?
Matching studs include 432-24162-1, 432-23067-1, 532-30739-1, and 532-30738-1. All use the same KF300 hose end claw groove.
What is the pressure rating of the assembled connection?
The assembled KF300 hose end is rated up to 350 bar. This requires matching studs and correct tightening.
Is there a stainless steel version of this sleeve?
Yes, the stainless steel alternative is 432-23676-1. It is used for corrosive environments instead of zinc-plated or black steel.
Why does my assembled sleeve leak after tightening?
Leaks usually come from an angled hose cut, incomplete stud insertion, or torque outside 15-25 Nm. Disassemble and inspect the hose end before cutting fresh.
How do I order or get a quotation?
IsoHiTech Lubrication Systems, founded in 2023, engineering since 2006, builds and supports every unit. Email inquiry@isohitech.com for specifications and a quotation.
For pricing or a formal quotation, use our contact form. You can also explore automatic lubrication systems or read the fitting types guide for related component comparisons.
