Sigma-Aldrich Datasheets for Laboratory Fittings

Ground glass joints are used in laboratories to form leak-free connections between component labware such as flasks, condensers, and bubblers.
Laboratory Fittings: Learn more

Product Name Notes
4-way adapter for solid transfer vessel
75° bent adapter, female joints: ST/NS 14/20 (2)
90° bent adapter, female joint: ST/NS 14/20, male joint: ST/NS 14/20
Adapter w/ glass stopcock, female and male joints: ST/NS 14/20
Aldrich gas-inlet adapter, joints: ST/NS 14/20 (2)
Aldrich gas-inlet adapter, joints: ST/NS 19/22 (2)
Aldrich gas-inlet adapter, joints: ST/NS 24/40 (2)
Aldrich gas-inlet adapter, joints: ST/NS 29/32 (2)
Aldrich septum-inlet adapter with side-arm joint: ST/NS 14/20
Aldrich septum-inlet adapter with side-arm joint: ST/NS 19/22
Aldrich septum-inlet adapter with side-arm joint: ST/NS 24/40
Aldrich septum-inlet adapter with side-arm joint: ST/NS 29/32
Aldrich septum-inlet adapter, in-line plain, joints: ST/NS 14/20 (2)
Aldrich septum-inlet adapter, in-line plain, joints: ST/NS 19/22 (2)
Aldrich septum-inlet adapter, in-line plain, joints: ST/NS 24/40 (2)
Aldrich septum-inlet adapter, in-line plain, joints: ST/NS 29/32 (2)
Aldrich septum-inlet adapter, in-line screw-thread, joints: ST/NS 14/20 (2)
Aldrich septum-inlet adapter, in-line screw-thread, joints: ST/NS 24/40 (2)
Aldrich septum-inlet adapter, in-line screw-thread, joints: ST/NS 29/32 (2)
Aldrich septum-inlet adapter, standard female plain, joint: ST/NS 14/20
Aldrich septum-inlet adapter, standard female plain, joint: ST/NS 19/22
Aldrich septum-inlet adapter, standard female plain, joint: ST/NS 24/40
Aldrich septum-inlet adapter, standard female plain, joint: ST/NS 29/32
Aldrich septum-inlet adapter, standard male plain, joint: ST/NS 14/20
Aldrich septum-inlet adapter, standard male plain, joint: ST/NS 19/22
Aldrich septum-inlet adapter, standard male plain, joint: ST/NS 24/40
Aldrich septum-inlet adapter, standard male plain, joint: ST/NS 29/32
Aldrich vacuum adapter, female joint: ST/NS 14/20, straight port
Aldrich vacuum adapter, female joint: ST/NS 19/22, straight port
Aldrich vacuum adapter, female joint: ST/NS 24/40, straight port
Aldrich vacuum adapter, female joint: ST/NS 29/32, straight port
Aldrich vacuum adapter, female joint: ST/NS 34/45, straight port
Aldrich vacuum adapter, male joint: ST/NS 14/20, side-port
Aldrich vacuum adapter, male joint: ST/NS 14/20, straight port
Aldrich vacuum adapter, male joint: ST/NS 19/22, side-port
Aldrich vacuum adapter, male joint: ST/NS 19/22, straight port
Aldrich vacuum adapter, male joint: ST/NS 24/40, side-port
Aldrich vacuum adapter, male joint: ST/NS 24/40, straight port
Aldrich vacuum adapter, male joint: ST/NS 29/32, side-port
Aldrich vacuum adapter, male joint: ST/NS 29/32, straight port
Aldrich vacuum adapter, male joint: ST/NS 34/45, side-port
Aldrich vacuum adapter, male joint: ST/NS 34/45, straight port
Enables filtration (via Buchner funnel) directly into round-bottom flask
Female joint: ST/NS 10/30, male joint: ST/NS 19/38, length 85mm
Female joint: ST/NS 10/30, male joint: ST/NS 24/40, length 85mm
Female joint: ST/NS 19/38, male joint: ST/NS 24/40, length 85mm
Female joint: ST/NS 24/40, male joint: ST/NS 29/42, length 85mm
Female joint: ST/NS 29/42, male joint: ST/NS 45/50, length 85mm
Female joint: ST/NS 29/42, male joint: ST/NS 55/50, length 85mm
Female joint: ST/NS 45/40, male joint: ST/NS 14/20
Female joints: ST/NS 14/20 (2)
Four-way adapter for solid transfer vessel
Has PTFE stopcock, for transfer of hazardous and sensitive reagents
Has vacuum connection, socket joint: ST/NS 14/23, cone joint: ST/NS 14/23
Has vacuum connection, socket joint: ST/NS 19/26, cone joint: ST/NS 19/26
Has vacuum connection, socket joint: ST/NS 19/26, cone joint: ST/NS 24/29
Has vacuum connection, socket joint: ST/NS 24/29, cone joint: ST/NS 24/29
Has vacuum connection, socket joint: ST/NS 29/32, cone joint: ST/NS 29/32
Joint cap w/ stopcock, female joint: threaded 14/20
Joint: ST/NS 10/18, opening size 6-7mm, has Viton® o-ring
Joint: ST/NS 10/19, has screw-thread connector for flexible tubing
Joint: ST/NS 14/20, opening size 6-7mm, has Viton® o-ring
Joint: ST/NS 14/23, has screw-thread connector for flexible tubing
Joint: ST/NS 19/22, opening size 6-7mm, has Viton® o-ring
Joint: ST/NS 19/26, has screw-thread connector for flexible tubing
Joint: ST/NS 19/26has screw-thread connector for flexible tubing
Joint: ST/NS 24/29, has screw-thread connector for flexible tubing
Joint: ST/NS 24/29has screw-thread connector for flexible tubing
Joint: ST/NS 24/40, opening size 6-7mm, has Viton® o-ring
Joint: ST/NS 24/40, opening size 8mm, has Viton® o-ring
Joint: ST/NS 29/32, has screw-thread connector for flexible tubing
Joint: ST/NS 29/32has screw-thread connector for flexible tubing
Joint: ST/NS 34/35, has screw-thread connector for flexible tubing
Length 100mm, bottom male joint: ST/NS 24/32, top female joint: ST/NS 14/23
Length 105mm, bottom male joint: ST/NS 19/26, top female joint: ST/NS 19/26
Length 107mm, bottom male joint: ST/NS 29/32, top female joint: ST/NS 19/26
Length 120mm, bottom male joint: ST/NS 29/32, top female joint: ST/NS 29/32
Length 124mm, bottom male joint: ST/NS 24/29, top female joint: ST/NS 24/29
Length 170mm, bottom male joint: ST/NS 45/40, top female joint: ST/NS 45/40
Length 90mm, bottom male joint: ST/NS 14/23, top female joint: ST/NS 14/23
Male joints: ST/NS (2), female joint: ST/NS 14/20
Offset w/ septum-inlet, male & female joints: ST/NS 14/20
Simplify transfer of solids contained in round-bottom flasks into vials
Socket to cone joint: ST/NS 14/23, generally used as distilling adapter
Socket to cone joint: ST/NS 19/26, generally used as distilling adapter
Socket to cone joint: ST/NS 24/29, generally used as distilling adapter
Socket to cone joint: ST/NS 29/32, generally used as distilling adapter
Socket to cone joint: ST/NS 34/35, generally used as distilling adapter
Standard female screw-thread, joint: ST/NS 14/20
Standard female screw-thread, joint: ST/NS 24/40
Standard female screw-thread, joint: ST/NS 29/32
Standard male screw-thread, joint: ST/NS 14/20
Standard male screw-thread, joint: ST/NS 24/40
Standard male screw-thread, joint: ST/NS 29/32
Straight adapter, female joints: ST/NS 14/20 (2)
Straight w/ glass stopcock on side arm, male & female joint: threaded 14/20
Straight w/ PTFE stopcock on side arm, male & female joint: threaded 14/20
Thread 13 (couples 6.0 - 7.0 mm diameter), joint: ST/NS 14/23, adjustable
Thread 13 (couples 6.0 - 7.0 mm diameter), joint: ST/NS 19/26, adjustable
Thread 13 (couples 6.0 - 7.0 mm diameter), joint: ST/NS 24/29, adjustable
Thread 13 (couples 6.0 - 7.0 mm diameter), joint: ST/NS 29/32, adjustable
Thread 13 (couples 6.0 - 7.0 mm diameter), joint: ST/NS 34/35, adjustable
Thread 18 (couples 7.0 - 8.5 mm diameter), joint: ST/NS 14/23, adjustable
Thread 18 (couples 7.0 - 8.5 mm diameter), joint: ST/NS 19/26, adjustable
Thread 18 (couples 7.0 - 8.5 mm diameter), joint: ST/NS 24/29, adjustable
Thread 18 (couples 7.0 - 8.5 mm diameter), joint: ST/NS 29/32, adjustable
Thread 18 (couples 7.0 - 8.5 mm diameter), joint: ST/NS 34/35, adjustable
Thread 24 (couples 10.5 - 11.5 mm diameter), joint: ST/NS 19/26, adjustable
Thread 24 (couples 10.5 - 11.5 mm diameter), joint: ST/NS 24/29, adjustable
Thread 24 (couples 10.5 - 11.5 mm diameter), joint: ST/NS 29/32, adjustable
Thread 24 (couples 10.5 - 11.5 mm diameter), joint: ST/NS 34/35, adjustable
Thread 28 (couples 18.0 - 19.0 mm diameter), joint: ST/NS 29/32, adjustable
Thread 28 (couples 18.0 - 19.0 mm diameter), joint: ST/NS 34/35, adjustable
Thread size, 32mm, joint: ST/NS 10/18, caps sold separately
Thread size, 32mm, joint: ST/NS 14/20, caps sold separately
Thread size, 32mm, joint: ST/NS 19/22, caps sold separately
Thread size, 32mm, joint: ST/NS 24/25, caps sold separately
Thread size, 45mm, joint: ST/NS 10/30, caps sold separately
Thread size, 45mm, joint: ST/NS 14/35, caps sold separately
Thread size, 45mm, joint: ST/NS 19/38, caps sold separately
Thread size, 45mm, joint: ST/NS 24/40, caps sold separately
Thread size, 45mm, joint: ST/NS 29/26, caps sold separately
Thread size, 45mm, joint: ST/NS 29/42, caps sold separately
Top female joint: ST/NS 10/19, bottom male joint: ST/NS 14/23
Top female joint: ST/NS 14/20, bottom male joint: ST/NS 14/20
Top female joint: ST/NS 14/20, bottom male joint: ST/NS 24/40
Top female joint: ST/NS 14/23, bottom male joint: ST/NS 10/19
Top female joint: ST/NS 14/23, bottom male joint: ST/NS 19/26
Top female joint: ST/NS 14/23, bottom male joint: ST/NS 24/29
Top female joint: ST/NS 14/23, bottom male joint: ST/NS 29/32
Top female joint: ST/NS 19/22, bottom male joint: ST/NS 19/22
Top female joint: ST/NS 19/22, bottom male joint: ST/NS 24/40
Top female joint: ST/NS 19/26, bottom male joint: ST/NS 14/23
Top female joint: ST/NS 19/26, bottom male joint: ST/NS 24/29
Top female joint: ST/NS 19/26, bottom male joint: ST/NS 29/32
Top female joint: ST/NS 19/26, bottom male joint: ST/NS 34/35
Top female joint: ST/NS 19/26, bottom male joint: ST/NS 40/38
Top female joint: ST/NS 19/26, bottom male joint: ST/NS 45/40
Top female joint: ST/NS 24/29, bottom male joint: ST/NS 14/23
Top female joint: ST/NS 24/29, bottom male joint: ST/NS 19/26
Top female joint: ST/NS 24/29, bottom male joint: ST/NS 29/32
Top female joint: ST/NS 24/29, bottom male joint: ST/NS 34/35
Top female joint: ST/NS 24/29, bottom male joint: ST/NS 40/38
Top female joint: ST/NS 24/29, bottom male joint: ST/NS 45/40
Top female joint: ST/NS 24/29, bottom male joint: ST/NS 50/42
Top female joint: ST/NS 24/29, bottom male joint: ST/NS 55/44
Top female joint: ST/NS 24/40, bottom male joint: ST/NS 14/20
Top female joint: ST/NS 24/40, bottom male joint: ST/NS 19/22
Top female joint: ST/NS 24/40, bottom male joint: ST/NS 24/40
Top female joint: ST/NS 24/40, bottom male joint: ST/NS 29/32
Top female joint: ST/NS 29/32, bottom male joint: ST/NS 14/23
Top female joint: ST/NS 29/32, bottom male joint: ST/NS 19/26
Top female joint: ST/NS 29/32, bottom male joint: ST/NS 24/29
Top female joint: ST/NS 29/32, bottom male joint: ST/NS 24/40
Top female joint: ST/NS 29/32, bottom male joint: ST/NS 29/32
Top female joint: ST/NS 29/32, bottom male joint: ST/NS 34/35
Top female joint: ST/NS 29/32, bottom male joint: ST/NS 45/40
Top female joint: ST/NS 34/35, bottom male joint: ST/NS 19/26
Top female joint: ST/NS 34/35, bottom male joint: ST/NS 24/29
Top female joint: ST/NS 34/35, bottom male joint: ST/NS 29/32
Top female joint: ST/NS 34/35, bottom male joint: ST/NS 40/38
Top female joint: ST/NS 34/35, bottom male joint: ST/NS 45/40
Top female joint: ST/NS 34/35, bottom male joint: ST/NS 50/42
Top female joint: ST/NS 40/38, bottom male joint: ST/NS 29/32
Top female joints: ST/NS 14/23 (2), bottom male joint: ST/NS 14/23
Top female joints: ST/NS 19/26 (2), bottom male joint: ST/NS 19/26
Top female joints: ST/NS 19/26 (2), bottom male joint: ST/NS 24/29
Top female joints: ST/NS 19/26 (2)
Top female joints: ST/NS 24/29 (2), bottom male joint: ST/NS 24/29
Top female joints: ST/NS 29/32 (2), bottom male joint: ST/NS 29/32
Top male joint: ST/NS 14/20, bottom male joint: ST/NS 14/20
Top male joint: ST/NS 19/22, bottom male joint: ST/NS 19/22
Top male joint: ST/NS 24/40, bottom male joint: ST/NS 14/20
Top male joint: ST/NS 24/40, bottom male joint: ST/NS 19/22
Top male joint: ST/NS 24/40, bottom male joint: ST/NS 24/40
Top male joint: ST/NS 29/32, bottom male joint: ST/NS 24/40
Top male joint: ST/NS 29/32, bottom male joint: ST/NS 29/32
Vacuum connection with screw-thread adapter for flexible tubing
W/ glass stopcock and hose barb, female joint: threaded 14/20
W/ glass stopcock and hose barb, male joint: threaded 14/20
W/ glass stopcock on side-arm Joint: ST/NS 14/20
W/ glass stopcock on side-arm Joint: ST/NS 19/22
W/ glass stopcock on side-arm Joint: ST/NS 24/40
W/ glass stopcock on side-arm Joint: ST/NS 29/32
W/ glass stopcock plain, joint: ST/NS 14/20
W/ glass stopcock plain, joint: ST/NS 19/22
W/ glass stopcock plain, joint: ST/NS 24/40
W/ glass stopcock plain, joint: ST/NS 29/32
W/ PTFE stopcock plain, joint: ST/NS 14/20
W/ PTFE stopcock plain, joint: ST/NS 19/22
W/ PTFE stopcock plain, joint: ST/NS 24/40
W/ PTFE stopcock plain, joint: ST/NS 29/32
W/ vacuum take-off, male and female joints: threaded 14/20
With drip-tips, joint: ST/NS 24/40
With drip-tips, joint: ST/NS 29/32
With glass stopcock and side-arm plain, joint: ST/NS 14/20
With glass stopcock and side-arm plain, joint: ST/NS 19/22
With glass stopcock and side-arm plain, joint: ST/NS 24/40
With glass stopcock and side-arm plain, joint: ST/NS 29/32
With glass stopcock and side-arm screw-thread, joint: ST/NS 14/20
With glass stopcock screw-thread, joint: ST/NS 14/20
With PTFE stopcock and side-arm plain, joint: ST/NS 14/20
With PTFE stopcock and side-arm plain, joint: ST/NS 19/22
With PTFE stopcock and side-arm plain, joint: ST/NS 24/40
With PTFE stopcock and side-arm plain, joint: ST/NS 29/32
With PTFE stopcock on side-arm joint: ST/NS 14/20
With PTFE stopcock on side-arm joint: ST/NS 19/22
With PTFE stopcock on side-arm joint: ST/NS 24/40
With PTFE stopcock on side-arm joint: ST/NS 29/32