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    4 Products

    O-Ring Sizing Cones

    Image of Product. For 1/4" to 3" ID O-Rings. Front orientation. O-Ring Gauges. 1/4" to 3" for O-Ring ID Range.
    Image of Product. For 1/4" to 5-5/8" ID O-Rings. Front orientation. Contains Inset. O-Ring Gauges. 1/4" to 5 5/8" for O-Ring ID Range.
    Image of Product. For 6 mm to 69 mm ID O-Rings. Front orientation. O-Ring Gauges. 6 mm to 69 mm for O-Ring ID Range.

    For 1/4" to 3" ID O-Rings

    For 1/4"

    to 5-5/8"

    ID O-Rings

    For 6 mm to

    69 mm ID

    O-Rings

    Place an O-ring onto one of these sizing cones to determine the size of your O-ring.
    1/4" to 3" for O-Ring ID Range—Cone for 1/4” to 3” ID ranges comes with a sizing tape to identify large O-rings with a 3 1/8” to 8” ID. This two-piece measuring system identifies 226 dash numbers.
    1/4" to 5 5/8" for O-Ring ID Range—Cone for 1/4" to 5 5/8" ID ranges identifies 209 dash numbers.
    6 mm to 69 mm for O-Ring ID Range—Cone for 6 mm to 69 mm ID ranges identifies the actual O-ring size.
    For O-Ring
    ID Range
    For O-Ring Wd.
    Ht.
    Each
    1/4" to 3"0.07", 0.103", 0.139", 0.21", 0.275"7 3/4"0000000000000
    1/4" to 5 5/8"0.07", 0.103", 0.139", 0.21", 0.275"17 5/8"000000000000
    6 mm to 69 mm1 mm, 2 mm, 3 mm, 4 mm, 5 mm7 7/8"000000000000

    O-Ring Gauges

    Image of ProductInUse. Front orientation. O-Ring Gauges. O-Ring Gauges.
    When you are unsure of the size of your O-ring, this sliding gauge is for O-rings with 1/32” to 13” ID ranges. It identifies 312 dash numbers. The extended length is 25”.
    For O-Ring
    ID Range
    For O-Ring Wd.
    Ht.
    Each
    1/32" to 13"0.07", 0.103", 0.139", 0.21", 0.275"13 1/2"0000000000000
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