Parker ST Series Brass Hydraulic Couplings
Parker ST Series brass couplings with female NPTF ends, 1/8" to 1-1/2".
Key features
- Fitting Configuration: ST Series Brass Hydraulic Couplings
- Nominal Size Range: 6 part numbers
- Fitting Configuration
- ST Series Brass Hydraulic Couplings
Product description
Parker ST Series brass couplings with female NPTF ends, 1/8" to 1-1/2".
Specification
- Material: Brass
- Part numbers: 6
Sizes and part numbers
The Sizes & Part Numbers tab lists every Parker part number with its connection. Ratings vary by size and connection — check the row for the part you order.
Matching halves
Quick couplings only seal and flow at their rating when both halves come from the same interchange profile. Quote the part number of the mating half too, or tell us what it must connect to, and we will confirm the match before supply.
How to order
Quote the Parker part number. Price and lead time are confirmed with the quotation.
Identification
| Parameter | Value |
|---|---|
| Fitting Configuration | ST Series Brass Hydraulic Couplings |
Dimensions
| Parameter | Value |
|---|---|
| Nominal Size Range | 6 part numbers |
Construction
| Parameter | Value |
|---|---|
| Material | Brass |
Shipping & lead time
Sizes & part numbers
6 sizes| Parker Hannifin part no. | Description | Size |
|---|---|---|
| BST-N12 | Brass ST Series 1-1/2" Female NPTF Coupling | — |
| BST-N1M | Brass Quick Disconnect Coupling 1/8 NPTF | 1/8 NPTF |
| BST-N3 | ST Series Brass Quick Disconnect Coupling | 3/8 inch NPTF |
| BST-N4 | Brass Quick Disconnect Coupling Female NPTF | — |
| BST-N6 | Brass Female NPTF 3/4 Inch Coupling | 3/4 Inch NPTF |
| BST-N8 | ST Series Brass Coupling Female NPTF 1 | — |
Description — What this part number is, as the manufacturer lists it. Ask us for the dimension drawing if you need it stamped.
Which part numbers are in this Parker range?▾
Will it connect to my existing coupler?▾
What is the 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
- Schnellkupplung
- fr
- raccord rapide
- es
- acoplamiento rápido
- it
- innesto rapido
From the blog
Written about this range
Safety & HSE
Trapped pressure: why the coupler will not connect, and how to release it safely
An attachment left in the sun all morning can build enough pressure in a disconnected line to make a coupler impossible to push home. Forcing it is the part that hurts people.
5 min read
Failure analysis
What splits a female coupler half
A cracked female coupler body is not a manufacturing defect and it is not bad luck. It is almost always one of three things, and two of them are avoidable for nothing.
4 min read
Machine down
Tractors and implements: the couplers are older than the machine
Agricultural hydraulics run on a coupler standard that has barely changed in decades, which is why a 1990s implement still connects to a new tractor — and why grit gets into everything.
3 min read
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