
Lock Nut ORFS — ORFS family lock nut for hydraulic line interconnection. RFQ-only; standard Indus zinc-plated carbon-steel construction.
Key features
- Body Configuration: lock-nut
- Port A Thread: Lock nut for DIN 2353 / SAE J518 bulkhead (matches host fitting thread)
- Port A Sealing: none
- Nominal Size Range: -04 to -16
- Body Configuration
- lock-nut
- Port A Thread
- Lock nut for DIN 2353 / SAE J518 bulkhead (matches host fitting thread)
- Port A Sealing
- none
- Nominal Size Range
- -04 to -16
Product description
The Lock Nut ORFS is a Lock nut hydraulic adapter in the ORFS family. Lock Nut ORFS — ORFS family lock nut for hydraulic line interconnection. RFQ-only; standard Indus zinc-plated carbon-steel construction.
Construction
- Body configuration: Lock nut
- Port A: Female — Lock nut for DIN 2353 / SAE J518 bulkhead (matches host fitting thread) (No threaded seal)
- Material: Carbon steel (stainless steel available on request)
- Surface treatment: Zinc-plated, Cr3+ passivated, RoHS-compliant
Performance
Working pressure matches the host port grade and the lowest-rated component in the assembly. Operating temperature -40°C to +120°C.. ORFS family — SAE J1453 / ISO 8434-3 — face O-ring seal on the male; flat face on the female. Leak-free under high vibration.
Applicable Standards
- SAE J1453
- ISO 8434-3
How to order
Specify (a) the host port size and thread spec on each end, (b) any special seal requirements (bonded seal vs ED seal vs cone seat), and (c) whether you need stainless-steel construction or non-standard surface treatment. Indus engineering will confirm the correct part number against your equipment.
Companion products
Pair with the appropriate Indus tubing or hose ends. For tube assemblies use Indus DIN 2353 cutting rings and end nuts. For hose assemblies pair with Indus crimp ferrules and the matching hose grade.
Identification
| Parameter | Value |
|---|---|
| Body Configuration | lock-nut |
Port A
| Parameter | Value |
|---|---|
| Port A Thread | Lock nut for DIN 2353 / SAE J518 bulkhead (matches host fitting thread) |
| Port A Sealing | none |
| Port A Gender | female |
Dimensions
| Parameter | Value |
|---|---|
| Nominal Size Range | -04 to -16 |
Construction
| Parameter | Value |
|---|---|
| Material | Carbon steel (stainless on request) |
| Surface Treatment | Zinc-plated, Cr3+ passivated, RoHS-compliant |
Compliance
| Parameter | Value |
|---|---|
| Applicable Standards | SAE J1453, ISO 8434-3 |
Shipping & lead time
What thread family does this adapter use?▾
What are the port specs?▾
What sizes are available?▾
What is the maximum working pressure?▾
What materials and finishes are available?▾
Is this adapter interchangeable with other thread families?▾
Do I need to crimp this onto a hose?▾
Lead time?▾
Shipped worldwide from our Dubai warehouse. Transit, routes and documentation for 126 destinations
The same part, in the designations used across European and Gulf trade catalogues.
- de
- ORFS Innengewinde Kontermutter
- fr
- femelle ORFS contre-écrou
- es
- hembra ORFS contratuerca
- it
- femmina ORFS controdado
From the blog
Written about this part
Specification & standards
Where JIC is the wrong choice
JIC is the default on most of this continent and it deserves to be. It is also the wrong answer in four specific situations, and every one of them is a situation where people keep specifying it anyway.
4 min read
Assembly, crimping & certification
How tight is tight: make-up torque and turns from finger tight
Nobody carries a torque wrench up a boom. The method that works without one is a published one, it is specific to each connector family, and it is the reason two fitters get different results on the same joint.
6 min read
Thread & fitting identification
Photographing a fitting so someone can identify it without holding it
Four photographs and one measurement identify almost any hydraulic fitting remotely. Most requests arrive with one photograph taken at arm’s length, and that one settles nothing.
4 min read
Engineers viewing this also looked at

Adjustable Branch Tee m ORFS X m SAE X m ORFS

Adjustable Branch Tee m ORFS X m BSP X m ORFS

Adjustable Branch Tee m ORFS X m Metric X m ORFS

Adjustable Run Tee m ORFS X m ORFS X m SAE

Adjustable Run Tee m ORFS X m ORFS X m Metric

Plug ORFS

Swivel Cap ORFS

