Skip to content
Login for the best B2B Wholesale Experience.
Login for the best B2B Wholesale Experience.
40-4S/S ZSi-Foster Quick Disconnect Plug - 1/4" MPT - 303 Stainless

40-4S/S by ZSi-Foster | Quick Disconnect Plug | 1/4" MPT | 303 Stainless Steel

Save $3.73 Save $3.73
$9.32
$9.32 - $9.32
$9.32
$5.59
$5.59 - $5.59
$5.59

ZSi-Foster Quick Disconnect Plug Couplings - 3/8" One Way Shut-Off - 4 Series - 3/8" Plugs - Male Thread
Specifications for Variant SKU: 40-4S/S ZSi-Foster
Series: 4 Series
Shape (Orientation): Straight
Ends Configuration: 1/4in Male NPT, 3/8in Male ISO-6150 Series B Industrial Pneumatic QD Interchange
Material(s): 303 Stainless Steel
Features:
  • High flow metal valves.
  • Precision molded seals form a "bubble tight" seal for reliable operation within rated working pressures. Nitrile (Buna-N) seals are standard. EPDM, Viton and Neoprene seals are available as options.
  • Proven ball locking mechanism with large numbers of stainless steel locking balls evenly distribute the load to resist wear and provide positive connections and allow a swiveling action to reduce hose torque.
  • Integral sleeve guard protects the sleeve and resists accidental disconnects for the "SG" series.
  • Knurling and/or grooves on the sleeve provide a gripping surface for ease of operation.
  • Wide range of body sizes, materials, options and end terminations are available to meet specific needs.
  • Accepts Industrial Interchange Plug.
  • Operation: Sleeve type couplings are widely used to connect air and low pressure fluid lines. Their compact and economical design uses a ball locking mechanism consisting of captive stainless steel balls that engage the locking groove on the mating plug. The sliding spring loaded sleeve on the socket must be manually retracted in order to connect or disconnect the plug.
  • Working Pressure: 300 PSIG; vacuum to 26" Hg
  • Interchangeability: Complies with ANSI/NFPA T3.20.14-1990 & IS0 6150-B
Specifications Body Size
1/4" 3/8" 1/2"
Rated Pressure (psi) 300 300 300
Temp. Range (Buna-N Seal) -40 deg. to +250 deg. F
Locking Device Stainless Steel Balls
Vacuum Data (inches Hg)
-- Disconnected (coupler only) Not Recommended
-- Connected 27.4 27.4 27.4
Approximate CFM at 100 (psi) 37 70 150
Male PlugPart Number Brand Female CouplerPart Number Size Description
38-4 Foster - 1/8" Steel
40-4 Foster 4104 FM4104 SV4104 1/4" Steel
B-B3M2-S Breco B-3BM2-B B-3BM2-B-SL 1/4" Steel
40-4B Foster - 1/4" Brass
40-4S/S Foster - 1/4" 303 Stainless Steel
42-4 Foster 4304 FM4304 SV4304 3/8" Steel
B-B3M3-S Breco - 3/8" Steel
42-4B Foster - 3/8" Brass
B-B3M3-B Breco B-3BM3-B B-3BM3-B-SL 3/8" Brass
42-4S/S Foster 4304S/S 3/8" 303 Stainless Steel
44-4 Foster 4504 FM4504 SV4504 1/2" Steel
B-B3M4-S Breco B-3BM4-B B-3BM4-B-SL 1/2" Steel
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