Skip to content

BL50MS by ZSi-Foster | Quick Disconnect | FST Series | Socket | Straight Thru | 1/2" MPT | Ball Lock | Brass

Save $0.43 Save $0.43
Original price $15.73
Original price $15.73 - Original price $15.73
Original price $15.73
Current price $15.30
$15.30 - $15.30
Current price $15.30

ZSi-Foster Quick Disconnect Couplings - Non-Standard Interchange Design - FST Series - Sockets, Straight Thru - Male Thread

Can I get a discount on my purchase?

Our listed prices are our lowest possible price with current costing but when volumes/value are high enough sometimes we can pass on a discount from the manufacturer.

Some products have predefined quantity discounts that will apply automatically, those pages have a table near the price describing the discount teirs.

If you feel your purchase quantity of a particular product is very large and want us to investigate with the manufacturer please feel free to Contact Us.

What if my item is out of stock?

All customers get an email regarding the shipping time frame of their purchase, usually within the business day. If your item is in stock we will ship within 1 business day, otherwise, the email will contain a lead time. If you do not receive this email, we recommend checking your email's spam folder. If you have any questions at that point please do not hesitate to Contact Us or chat below!

Can I get free shipping?

Shipping will calculate as free instantly if your order value exceeds $5000.

Some exceptions apply.

Free Freight is only available for the Contiguous USA.

Specifications for Variant SKU: BL50MS ZSi-Foster
Series: FST Series
Shape (Orientation): Straight
Material(s): Brass
Seal Material(s): Buna-N/Nitrile Rubber
Interchange:
  • Straight-Thru Industrial Interchange.
  • Standard industrial interchange design, most widely used in industry. Within each series, only sockets and plugs of the same size will couple together.
Features:
  • Type: FST Straight-Thru, No valve in either socket or plug.
  • Operation: Manual - Socket sleeve must be manually retracted to connect and disconnect.
  • Options: Ball Lock (BL) - Locks socket against accidental disconnect. To connect, align ball with slot. After connection, rotate sleeve to lock. To disconnect, realign ball with slot and retract sleeve.
  • Seal Compound: Standard seals are Buna-N
  • Performance Data Flow: Couplers have same inside diameter as nominal pipe.
  • Rated Pressure: Rated pressures as defined by ANSI/B93.2-1986, based on 4:1 Safety Factor and non-shock service.
  • Vacuum Service: 27" Hg maximum
  • NOTE: Only Sockets & Plugs with same prefix digits connect together. Example: 25FS & 25MPB
Additional Information:
Female CouplerPart Number Male PlugPart Number MPT Size Description Drawing
12MS 12MP 12MPB 12MPS 1/8" Brass 12MS.pdf
BL12MS - 1/8" Ball Lock, Brass N/A
25MS 25MP 25MPB 25MPS 1/4" Brass 25MS.pdf
BL25MS - 1/4" Ball Lock, Brass N/A
25MS-101 - 1/4" Brass, w/Viton Seal 25MS-101.pdf
38MS 38MP 38MPB 38MPS 3/8" Brass 38MS.pdf
38MS-101 - 3/8" Brass, w/Viton Seal 38MS-101.pdf
BL38MS - 3/8" Ball Lock, Brass N/A
50MS 50MP 50MPB 50MPS 1/2" Brass 50MS.pdf
50MS-101 - 1/2" Brass, w/Viton Seal 50MS-101.pdf
BL50MS - 1/2" Ball Lock, Brass N/A
75MS 75MP 75MPB 75MPS 3/4" Brass 75MS.pdf
BL75MS - 3/4" Ball Lock, Brass N/A
100MS 100MP 100MPB 100MPS 1" Brass 100MS.pdf
BL100MS - 1" Ball Lock, Brass N/A
ZSi Foster

ZSi Foster

ZSi-Foster is a leading manufacturer and supplier of highly engineered, mission critical clamping and coupling devices as well as USA-manufactured strut and strut accessories. Our clamping products are specified for the most demanding environments and applications to eliminate damage due to vibration, shock, surge and corrosion and to eliminate unwanted noise. Our coupler products provide the highest quality connections for pipe, tube and hose in hydraulic and pneumatic applications.

Shop Parts by ZSi Foster