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4STF4-B Breco by Foster | FST Series | Straight Thru Socket | 1/2" Socket x 1/2" Female NPT Thread | Straight | Brass

4STF4-B Breco by Foster | FST Series | Straight Thru Socket | 1/2" Socket x 1/2" Female NPT Thread | Straight | Brass

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$15.31
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$15.31
$8.93
$8.93 - $8.93
$8.93

Foster Quick Disconnects - FST Series Straight Thru Socket - Breco
Specifications for Variant SKU: 4STF4-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 FPT Size Description
12FS Foster 12FPB 12FPS 1/8" Brass
12FS-101 Foster 1/8" Brass, w/Viton Seal
BL12FS Foster 1/8" Brass
12FSS Foster 1/8" 303 Stainless Steel
12FSS-101 Foster 1/8" 303 Stainless, w/Viton Seal
12FSS-103 Foster 1/8" 303 Stainless, w/EPDM Seal
BL12FSS Foster 1/8" Ball Lock, 303 Stainless Steel
1STF1-SS Breco ST1F1-B ST1F1-SS ST1F1-S 1/8" 303 Stainless Steel
1STF1-B Breco 1/8" Brass
25FS Foster 25FP 25FPB 25FPS 1/4" Brass
12FSS-103 Foster 1/4" Brass, w/Viton Seal
BL25FS Foster 1/4" Ball Lock, Brass
25FS-SWVL Foster 1/4" Power Washer Swivel Tip, Brass
25FSS Foster 1/4" 303 Stainless Steel
25FSS-101 Foster 1/4" 303 Stainless, w/Viton Seal
25FSS-103 Foster 1/4" 303 Stainless, w/EPDM Seal
BL25FSS Foster 1/4" Ball Lock, 303 Stainless Steel
2STF2-B Breco ST2F2-B ST2F2-SS ST2F2-S ST2F2-S-E 1/4" Brass
2STF2-SS Breco 1/4" 303 Stainless Steel
38FS Foster 38FP 38FPB 38FPS 3/8" Brass
38FS-101 Foster 3/8" Brass, w/Viton Seal
38FS-103 Foster 3/8" Brass, w/EPDM Seal
BL38FS Foster 3/8" Ball Lock, Brass
38FSS Foster 3/8" 303 Stainless Steel
38FSS-101 Foster 3/8" 303 Stainless, w/Viton Seal
38FSS-103 Foster 3/8" 303 Stainless, w/EPDM Seal
BL38FSS Foster 3/8" Ball Lock, 303 Stainless Steel
3STF3-B Breco ST3F3-B ST3F3-SS ST3F3-S 3/8" Brass
3STF3-SS Breco 3/8" 303 Stainless Steel
50FS Foster 50FP 50FPB 50FPS 1/2" Brass
50FS-101 Foster 1/2" Brass, w/Viton Seal
50FS-103 Foster 1/2" Brass, w/EPDM Seal
BL50FS Foster 1/2" Ball Lock, Brass
50FSS Foster 1/2" 303 Stainless Steel
50FSS-101 Foster 1/2" 303 Stainless, w/Viton Seal
50FSS-103 Foster 1/2" 303 Stainless, w/EPDM Seal
BL50FSS Foster 1/2" Ball Lock, 303 Stainless Steel
4STF4-B Breco ST4F4-B ST4F4-SS ST3F3-S 1/2" Brass
4STF4-SS Breco 1/2" 303 Stainless Steel
75FS Foster 75FP 75FPB 75FPS 3/4" Brass
BL75FS Foster 3/4" Ball Lock, Brass
75FS-101 Foster 3/4" Brass, w/Viton Seal
75FS-103 Foster 3/4" Brass, w/EPDM Seal
75FS-104 Foster 3/4" Brass, w/Silicone Seal
75FSS Foster 3/4" 303 Stainless Steel
75FSS-101 Foster 3/4" 303 Stainless, w/Viton Seal
75FSS-103 Foster 3/4" 303 Stainless, w/EPDM Seal
BL75FSS Foster 3/4" Ball Lock, 303 Stainless Steel
8STF8-B Breco ST8F8-B ST8F8-SS 1" Brass
8STF8-SS Breco 1" 303 Stainless Steel
100FS Foster 100FP 100FPB 100FPS 1" Brass
100FS-101 Foster 1" Brass, w/Viton Seal
BL100FS Foster 1" Ball Lock, Brass
100FSS Foster 1" 303 Stainless Steel
BL100FSS Foster 1" Ball Lock, 303 Stainless Steel
125FS Foster 125FP 125FPB 1-1/4" Brass
BL125FS Foster 1-1/4" Ball Lock, Brass
150FS Foster 150FP 150FPB 1-1/2" Brass
BL150FS Foster 1-1/2" Ball Lock, Brass

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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