McMaster-Carr logo
    Filter by
    System of Measurement
    Face Shape
    Compressed Height
    Plunger Travel
    Attribute Image
    Base Shape
    Number of Mounting Holes
    Mounting Hole Location
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    70 Products

    Adjustable Air Springs

    Isolate vibration and absorb shock from moving equipment, even with changing loads. Also for leveling and lifting, use compressed air to adjust air springs to the height and force required for your application. They’re often used with vibratory screen and conveyors; loading and transfer stations; and sensitive testing and measuring equipment. Do not extend beyond height at full stroke.
    Sleeve Air Spring
    Image of Product. Front orientation. Contains Annotated, MultipleImages. Air Springs. Sleeve Air Spring.
    Air Inlet
    Mount.
    Hole
    Mount.
    Stud
    Ht. @ Full
    Stroke
    Compressed
    Ht.
    Stroke
    Lg.
    Extended
    Ht.
    Full Stroke Lifting Force @ Pressure
    Beginning Stroke Lifting Force @ Pressure
    OD @ Full
    Stroke
    Temp. Range,
    ° F
    Air Spring
    Material
    Thread
    Type
    Gender
    Pipe
    Size
    Thread
    Size
    Dp.
    Thread
    Size
    Lg.
    Each
    6.88"2.2"4"6.25"140 lbf @ 20 psi
    320 lbf @ 60 psi
    560 lbf @ 100 psi
    250 lbf @ 20 psi
    700 lbf @ 60 psi
    1,250 lbf @ 100 psi
    5.6"-20 to 135Neoprene
    NPTF
    Female1/8
    3/8"-16
    1/2"3/4"-16
    0.63"9538K220000000
    7.73"2.2"4.9"7.1"80 lbf @ 20 psi
    180 lbf @ 60 psi
    310 lbf @ 100 psi
    340 lbf @ 20 psi
    700 lbf @ 60 psi
    1,100 lbf @ 100 psi
    4.6"-20 to 135Neoprene
    NPTF
    Female1/8
    3/8"-16
    1/2"3/4"-16
    0.63"9538K2400000
    8.72"3.6"4.4"8"40 lbf @ 20 psi
    60 lbf @ 60 psi
    110 lbf @ 100 psi
    60 lbf @ 20 psi
    200 lbf @ 60 psi
    360 lbf @ 100 psi
    3.25"-20 to 135Neoprene
    NPTF
    Female1/8
    1/2"-13
    5/8"3/4"-16
    0.72"9538K2300000
    10.21"4"5.5"9.5"160 lbf @ 20 psi
    500 lbf @ 60 psi
    800 lbf @ 100 psi
    190 lbf @ 20 psi
    540 lbf @ 60 psi
    950 lbf @ 100 psi
    5.7"-20 to 135Neoprene
    NPTF
    Female1/8
    1/2"-13
    5/8"3/4"-16
    0.71"9538K2800000
    11.21"4"6.5"10.5"140 lbf @ 20 psi
    340 lbf @ 60 psi
    540 lbf @ 100 psi
    170 lbf @ 20 psi
    520 lbf @ 60 psi
    850 lbf @ 100 psi
    4.6"-20 to 135Neoprene
    NPTF
    Female1/8
    1/2"-13
    5/8"3/4"-16
    0.71"9538K2500000
    11.21"4"6.5"10.5"180 lbf @ 20 psi
    460 lbf @ 60 psi
    750 lbf @ 100 psi
    230 lbf @ 20 psi
    660 lbf @ 60 psi
    1,100 lbf @ 100 psi
    5.6"-20 to 135Neoprene
    NPTF
    Female1/8
    1/2"-13
    5/8"3/4"-16
    0.71"9538K2600000
    12"4.1"6.8"10.9"240 lbf @ 20 psi
    700 lbf @ 60 psi
    1,200 lbf @ 100 psi
    420 lbf @ 20 psi
    1,100 lbf @ 60 psi
    2,000 lbf @ 100 psi
    7"-20 to 135Neoprene
    NPTF
    Female1/8
    9538K27000000
    Single-Tire Air Spring
    Image of Product. Front orientation. Contains Annotated, MultipleImages. Air Springs. Single-Tire Air Spring.
    Air Inlet
    Mount. Hole
    Ht. @ Full
    Stroke
    Compressed
    Ht.
    Stroke
    Lg.
    Extended
    Ht.
    Full Stroke Lifting Force @ Pressure
    Beginning Stroke Lifting Force @ Pressure
    OD @ Full
    Stroke
    Temp. Range,
    ° F
    Air Spring
    Material
    Thread
    Type
    Gender
    Pipe
    Size
    Ctr.-to-Ctr.
    Thread
    Size
    Dp.
    Each
    4.8"2"2.8"4.8"60 lbf @ 20 psi
    440 lbf @ 60 psi
    850 lbf @ 100 psi
    420 lbf @ 20 psi
    1,200 lbf @ 60 psi
    2,000 lbf @ 100 psi
    6.5"-20 to 135Neoprene
    NPTF
    Female1/4
    1 3/4"3/8"-16
    5/8"9539K440000000
    5.2"2"3.2"5.2"100 lbf @ 20 psi
    350 lbf @ 60 psi
    850 lbf @ 100 psi
    500 lbf @ 20 psi
    1,500 lbf @ 60 psi
    2,600 lbf @ 100 psi
    7.7"-20 to 135Neoprene
    NPTF
    Female1/4
    1 3/4"3/8"-16
    5/8"9539K46000000
    5.3"2"3.3"5.3"100 lbf @ 20 psi
    550 lbf @ 60 psi
    1,100 lbf @ 100 psi
    660 lbf @ 20 psi
    2,100 lbf @ 60 psi
    3,600 lbf @ 100 psi
    8.7"-20 to 135Neoprene
    NPTF
    Female1/4
    2 3/4"3/8"-16
    5/8"9539K47000000
    5.4"2"3.4"7.1"10 lbf @ 20 psi
    300 lbf @ 60 psi
    750 lbf @ 100 psi
    750 lbf @ 20 psi
    1,800 lbf @ 60 psi
    3,000 lbf @ 100 psi
    7"-20 to 135Neoprene
    NPTF
    Female1/4
    1 3/4"3/8"-16
    5/8"9539K49000000
    Air Valves
    Double-Tire Air Spring
    Image of Product. Front orientation. Contains Annotated, MultipleImages. Air Springs. Double-Tire Air Spring.
    Air Inlet
    Mount. Hole
    Ht. @ Full
    Stroke
    Compressed
    Ht.
    Stroke
    Lg.
    Extended
    Ht.
    Full Stroke Lifting Force @ Pressure
    Beginning Stroke Lifting Force @ Pressure
    OD @ Full
    Stroke
    Temp. Range,
    ° F
    Air Spring
    Material
    Thread
    Type
    Gender
    Pipe
    Size
    Ctr.-to-Ctr.
    Thread
    Size
    Dp.
    Each
    7.1"2.8"4.3"7.7"0 lbf @ 20 psi
    220 lbf @ 60 psi
    580 lbf @ 100 psi
    750 lbf @ 20 psi
    1,700 lbf @ 60 psi
    2,800 lbf @ 100 psi
    6.5"-20 to 135Neoprene
    NPTF
    Female1/4
    1 3/4"3/8"-16
    5/8"9551K510000000
    9 1/2"2.9"6.6"10.1"30 lbf @ 20 psi
    450 lbf @ 60 psi
    1,000 lbf @ 100 psi
    1,200 lbf @ 20 psi
    3,100 lbf @ 60 psi
    5,000 lbf @ 100 psi
    8.8"-20 to 135Neoprene
    NPTF
    Female1/4
    2 3/4"3/8"-16
    5/8"9551K54000000
    Air Valves

    Spring-Loaded Guide Plungers

    As the face of these plungers is pushed in, their internal spring applies outward pressure to hold a workpiece in position against stops and rails. They’re also known as spring stops. These plungers make it easy to insert parts into your fixture or remove them, and they allow for slight variations in size from part to part. Mount them on flat surfaces.
    Square Face
    Image of Product. Front orientation. Spring Stops. Spring-Loaded Guide Plungers, Square Face, Rectangular Base, 2 Mounting Slots.
    Image of Attribute. Front orientation. Contains Annotated. Spring-Loaded Guide Plungers, Square Face, 2 Mounting Slots, 2 Mounting Holes.

    Rectangular Base

    2 Mounting Slots

    2 Mounting Slots

    2 Mounting Holes

    Acetal Face—An acetal face is nonmarring to protect soft metal and polished surfaces.
    Stainless Steel Face—Choose a stainless steel face for chemical and corrosion resistance.
    2 Mounting Slots—Plungers with mounting slots can be fastened anywhere along the body, either through the slot or the hole. They also have an adjustable face—rotate it to point up, down, left, or right.
    Base
    Mounting Slot
    Mounting Hole
    Face
    Wd.
    Plunger
    Travel
    Shape
    Lg.
    Wd.
    Spring Force,
    lbf
    Body
    Material
    No.
    of
    Lg.
    Wd.
    Ctr.-to-Ctr.
    Wd.
    No.
    of
    Dia.
    Ctr.-to-Ctr.
    Wd.
    Ctr.-to-Face
    Lg.
    Mounting Fasteners
    Included
    Each
    Acetal Face—Adjustable
    0.39"1/8"Rectangle0.65"0.866"1.8 to 2.4Zinc Alloy20.307"0.13"0.551"20.13"0.551"0.457"No3351A11100000
    0.39"1/8"Rectangle0.65"0.866"2.5 to 4.5Zinc Alloy20.307"0.13"0.551"20.13"0.551"0.457"No3351A1120000
    0.63"3/16"Rectangle1.083"1.25"1.8 to 4.2Zinc Alloy20.606"0.213"0.827"20.213"0.827"0.689"No3351A11500000
    0.63"3/16"Rectangle1.083"1.25"4.3 to 10.1Zinc Alloy20.606"0.213"0.827"20.213"0.827"0.689"No3351A11600000
    0.87"5/16"Rectangle1.375"1.5"3.9 to 7.4Zinc Alloy20.787"0.25"1.063"20.25"1.063"0.972"No3351A11900000
    0.87"5/16"Rectangle1.375"1.5"6.1 to 16.8Zinc Alloy20.787"0.25"1.063"20.25"1.063"0.972"No3351A12100000
     
    Stainless Steel Face—Adjustable
    0.39"1/8"Rectangle0.65"0.866"1.8 to 2.4Zinc Alloy20.307"0.13"0.551"20.13"0.551"0.457"No3351A11300000
    0.39"1/8"Rectangle0.65"0.866"2.5 to 4.5Zinc Alloy20.307"0.13"0.551"20.13"0.551"0.457"No3351A11400000
    0.63"3/16"Rectangle1.083"1.25"1.8 to 4.2Zinc Alloy20.606"0.213"0.827"20.213"0.827"0.689"No3351A11700000
    0.63"3/16"Rectangle1.083"1.25"4.3 to 10.1Zinc Alloy20.606"0.213"0.827"20.213"0.827"0.689"No3351A11800000
    0.87"5/16"Rectangle1.375"1.5"3.9 to 7.4Zinc Alloy20.787"0.25"1.063"20.25"1.063"0.972"No3351A12200000
    0.87"5/16"Rectangle1.375"1.5"6.1 to 16.8Zinc Alloy20.787"0.25"1.063"20.25"1.063"0.972"No3351A12300000
     

    Eyelet Gas Spring End Fittings

    Image of Product. Front orientation. Gas Spring End Fittings. Eyelet Gas Spring End Fittings .
    Image of Attribute. Front orientation. Contains Annotated. Gas Spring End Fittings. Eyelet Gas Spring End Fittings .
    Thread these eyelet end fittings onto gas springs. They require an eyelet mounting bracket (sold separately) or a pin (not included) to mount the gas spring.
    Select end fittings with a thread size that matches the rod and end thread sizes of your gas spring. The fittings will increase your gas spring's extended and compressed lengths, so add the Length 1 value for each fitting you attach.
    Thread Size
    ID
    Lg. 1
    Lg. 2
    Thk.
    Gender
    Each
    Zinc
    M6 × 1 mm0.208"0.709"0.35"0.39"Female9416K42200000
    M6 × 1 mm0.263"0.709"0.35"0.39"Female9416K4230000
    M6 × 1 mm0.32"1.1"0.31"0.2"Female9416K840000
    M6 × 1 mm0.41"0.83"0.42"0.39"Female6465K610000
    M6 × 1 mm0.5"1.14"0.42"0.39"Female6465K1120000
    M8 × 1.25 mm0.32"1.1"0.31"0.2"Female9416K880000
    M8 × 1.25 mm0.33"0.83"0.42"0.39"Female6465K630000
    M8 × 1.25 mm0.41"0.83"0.42"0.39"Female6465K270000
     

    Plate-Mount Retractable Spring Plungers

    Image of Product. Front orientation. Spring Plungers. Plate-Mount Retractable Spring Plungers.
    Image of Attribute. Front orientation. Contains Annotated. Plate-Mount Retractable Spring Plungers.
    Fasten these spring plungers to a flat surface when it's not possible to thread holes. The plate ensures a stable, even base so the spring plunger never shifts out of place. These spring plungers retract manually with a tug of the knob, so you can make controlled adjustments as needed for your job. They're often used for aligning sheet metal parts for cutting, stamping, and welding.
    Steel Nose—The strongest, most wear-resistant noses, these won't deform from stress and vibration. Steel is best for dry environments, however, since moisture will cause it to rust.
    18-8 Stainless Steel Nose—The choice for wet and outdoor environments, 18-8 stainless steel resists rusting. It's strong enough for most jobs, but won't withstand stress and vibration as well as steel.
    Twist-to-Lock—Free up both hands to adjust your workpiece or switch out parts without the plunger springing back and getting in the way. Pull back the handle and twist to lock the nose in its retracted position.
    Plate
    Nose
    Nose
    Force, lbf
    Handle
    Mount Holes
    Nonlocking
    Twist-to-Lock
    Ht.
    Wd.
    Material
    Extended
    Lg.
    Dia.
    Extended
    Compressed
    Body
    Lg.
    Material
    Dia.
    Dia.
    Ctr.-to-Ctr.
    Wd.
    Each
    Each
    Steel Nose
    0.71"1.57"Zinc Alloy0.24"0.24"1.94.91.46"Nylon
    1"0.17"1.18"8478A10000008478A3000000
    0.71"1.57"Zinc Alloy0.55"0.24"1.94.91.77"Nylon
    1"0.17"1.18"8478A7000008478A500000
    0.79"1.81"Zinc Alloy0.31"0.31"3.56.31.73"Nylon
    1 1/4"0.21"1.34"8478A2000008478A400000
    0.79"1.81"Zinc Alloy0.71"0.31"3.56.32.13"Nylon
    1 1/4"0.21"1.34"8478A8000008478A600000
     
    18-8 Stainless Steel Nose
    0.59"1.38"Zinc Alloy0.2"0.16"0.92.71.09"Nylon
    13/16"0.17"0.98"8478A31000008478A3400000
    0.59"1.38"Zinc Alloy0.39"0.16"0.92.71.28"Nylon
    13/16"0.17"0.98"8478A311000008478A3500000
    0.71"1.57"Zinc Alloy0.24"0.2"1.33.61.34"Nylon
    1"0.17"1.18"8478A312000008478A3600000
    0.71"1.57"Zinc Alloy0.24"0.24"1.33.61.34"Nylon
    1"0.17"1.18"8478A314000008478A3800000
    0.71"1.57"Zinc Alloy0.24"0.24"1.94.91.46"Nylon
    1"0.17"1.18"8478A11000008478A2100000
    0.71"1.57"Zinc Alloy0.47"0.2"1.33.61.57"Nylon
    1"0.17"1.18"8478A313000008478A3700000
    0.71"1.57"Zinc Alloy0.47"0.24"1.33.61.57"Nylon
    1"0.17"1.18"8478A315000008478A3900000
    0.71"1.57"Zinc Alloy0.55"0.24"1.94.91.77"Nylon
    1"0.17"1.18"8478A12000008478A2200000
    0.79"1.81"Zinc Alloy0.31"0.31"3.56.31.73"Nylon
    1 1/4"0.21"1.34"8478A13000008478A2300000
    0.79"1.81"Zinc Alloy0.71"0.31"3.56.32.13"Nylon
    1 1/4"0.21"1.34"8478A14000008478A2400000
    0.91"1.97"Zinc Alloy0.39"0.31"2.47.81.87"Nylon
    1 5/16"0.21"1.5"8478A316000008478A4100000
    0.91"1.97"Zinc Alloy0.39"0.39"2.47.81.87"Nylon
    1 5/16"0.21"1.5"8478A318000008478A4300000
    0.91"1.97"Zinc Alloy0.79"0.31"2.47.82.27"Nylon
    1 5/16"0.21"1.5"8478A317000008478A4200000
    0.91"1.97"Zinc Alloy0.79"0.39"2.47.82.27"Nylon
    1 5/16"0.21"1.5"8478A319000008478A4400000
     
    back to top