Skip to content
3303GB ZSi-Foster Quick Disconnect 1-Way Manual Socket - 3/8" MPT - Brass

3303GB by ZSi-Foster | Quick Disconnect | 1-Way Manual Socket | 3/8" MPT | Brass

Save $0.42 Save $0.42
$14.88
$14.88 - $14.88
$14.88
$14.46
$14.46 - $14.46
$14.46

ZSi-Foster Quick Disconnect Couplings - 1/4" One Way Manual Sockets - 3 Series - 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: 3303GB ZSi-Foster
Series: 3 Series
Shape (Orientation): Straight
Ends Configuration: 3/8in Male NPT, 1/4in Female ISO-6150 Series B Industrial Pneumatic QD Interchange
Material(s): Brass
Seal Material(s): Buna-N/Nitrile Rubber
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
Female CouplerPart Number Male PlugPart Number Size Description Drawing
2903 12-3 12S-3 1/8" Brass/Steel 2903.pdf
BL2903 - 1/8" Ball Lock N/A
2903GB - 1/8" Brass N/A
2903GS - 1/8" Steel N/A
2903H - 1/8" Steel, For Heat, Viton Seal 2903H.pdf
2903S - 1/8" Brass/SS, For Steam, EPDM Seal 2903S.pdf
2903S/S 12-3S/S 1/8" 303 Stainless 2903S-S.pdf
BL2903S/S - 1/8" Ball Lock, 303 Stainless N/A
3103 10-3 10S-3 10-3G 10-3D 1/4" Brass/Steel 3103.pdf
BL3103 - 1/4" Brass/Steel, Ball Lock N/A
3103D - 1/4" Brass/Steel, w/Dill Valve N/A
3103GB - 1/4" Brass 3103GB.pdf
3103GS - 1/4" Steel 3103GS.pdf
3103H - 1/4" Steel, For Heat, Viton Seal 3103H.pdf
3103LV - 1/4" Brass/Steel, Less Valve 3103LV.pdf
3103S - 1/4" Brass/SS, For Steam, EPDM Seal 3103S.pdf
3103S/S 10-3S/S 10-3GS/S 1/4" 303 Stainless 3103S-S.pdf
BL3103S/S - 1/4" Ball Lock, 303 Stainless N/A
BL3103S/S-104 - 1/4" Ball Lock, 303 Stainless, w/Silicone Seal N/A
3103S/SH - 1/4" 303 Stainless, For Heat, Viton Seal 3103S-SH.pdf
3103S/SLV - 1/4" 303 Stainless, Less Valve 3103S-SLV.pdf
3103W - 1/4" Brass/SS, For Water, Buna-N Seal 3103W.pdf
BL3103W - 1/4" Ball Lock, For Water, Brass/SS, Buna-N Seal N/A
3303 14-3 14S-3 14-3GB 3/8" Brass/Steel 3303.pdf
BL3303 - 3/8" Ball Lock N/A
3303GB - 3/8" Brass N/A
3303GS - 3/8" Steel N/A
3303H - 3/8" Steel, For Heat, Viton Seal 3303H.pdf
3303S/S - 3/8" 303 Stainless 3303S-S.pdf
BL3303S/S - 3/8" Ball Lock, 303 Stainless N/A
3303W - 3/8" Brass/SS, For Water, Buna-N Seal 3303W.pdf
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