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4STM4-B Breco by Foster | FST Series | Straight Thru Socket | 1/2" Socket x 1/2" Male NPT Thread | Straight | Brass

4STM4-B Breco by Foster | FST Series | Straight Thru Socket | 1/2" Socket x 1/2" Male NPT Thread | Straight | Brass

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Foster Quick Disconnects - FST Series Straight Thru Socket - Breco
Specifications for Variant SKU: 4STM4-B ZSi-Foster
Brand: Breco
Series: FST Series
Shape (Orientation): Straight
Material(s): Brass
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
Female CouplerPart Number Brand Male PlugPart Number MPT Size Description
12MS Foster 12MP 12MPB 12MPS 1/8" Brass
BL12MS Foster 1/8" Ball Lock, Brass
1STM1-B Breco ST1M1-B ST1M1-SS ST1M1-S 1/8" Brass
25MS Foster 25MP 25MPB 25MPS 1/4" Brass
BL25MS Foster 1/4" Ball Lock, Brass
25MS-101 Foster 1/4" Brass, w/Viton Seal
2STM2 Breco ST2M2-B ST2M2-SS ST2M2-S 1/4" Brass
ST2M2-S Breco 1/4" Steel
38MS Foster 38MP 38MPB 38MPS 3/8" Brass
38MS-101 Foster 3/8" Brass, w/Viton Seal
BL38MS Foster 3/8" Ball Lock, Brass
3STM3-B Breco ST3M3-B ST3M3-SS ST3M3-S 3/8" Brass
3STM3-SS Breco 3/8" 303 Stainless Steel
50MS Foster 50MP 50MPB 50MPS 1/2" Brass
50MS-101 Foster 1/2" Brass, w/Viton Seal
BL50MS Foster 1/2" Ball Lock, Brass
4STM4-B Breco ST4M4-B ST4M4-S ST4M4-SS 1/2" Brass
4STM4-SS Breco 1/2" 303 Stainless Steel
75MS Foster 75MP 75MPB 75MPS 3/4" Brass
BL75MS Foster 3/4" Ball Lock, Brass
6STM6-B Breco ST6M6-B ST6M6-SS ST6M6-S 3/4" Brass
6STM6-SS Breco 3/4" 303 Stainless Steel
100MS Foster 100MP 100MPB 100MPS 1" Brass
BL100MS Foster 1" Ball Lock, Brass
8STM8-B Breco ST8M8-B ST8M8-SS ST8M8-S 1" Brass
8STM8-SS Breco 1" 303 Stainless Steel

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.

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