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Aluminum Stat-O-Seal Sealing Washers

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Our special aluminum Stat-O-Seals are much more reliable than the more common steel version. Even if the rubber portion fails to make contact all around the port, the aluminum acts as a crush washer, providing a reliable metal-on-metal seal.

Each Stat-O-Seal has a Buna-N inner seal bonded to the center of the aluminum washer. The Buna-N rubber is resistant to water, oil, and petroleum fuels (not for use with brake fluid). Use them to seal screws, bolts, or plumbing fittings. The rubber insert is molded to be slightly thicker than the washer, though not quite as thick as a standard rubber O-ring. Stat-O-Seals should not be used to replace O-rings on chamfered ports.

Sold individually.

Stat-O-Seal Dimensions
Nominal
Size
#10 1/4" 5/16" 3/8" 7/16" 1/2" 9/16" 5/8" 3/4" 7/8" 1.00"
ID 0.190" (3/16")
4.8mm
0.250"
6.4mm
0.312"
7.9mm
0.375"
9.5mm
0.437"
11.1mm
0.500"
12.7mm
0.562"
14.3mm
0.625"
15.9mm
0.750"
19mm
0.875"
22.2mm
1"
24.5mm
Equivalent AN Size
(Plumbing Fittings)
- - - 3AN 4AN - 6AN - 8AN 10AN -
AN Size
(Bolts)
AN3 AN4 AN5 AN6 AN7 AN8 AN9 AN10 - - -
OD 0.44" 0.50" 0.60" 0.66" 0.76" 0.88" 1.06" 1.19" 1.32" 1.51" 1.76"
Thickness
(Aluminum)
0.050" 0.050" 0.050" 0.050" 0.050" 0.050" 0.050" 0.050" 0.065" 0.065" 0.065"
Thickness
(Rubber)
0.072" 0.075" 0.075" 0.072" 0.073" 0.075" 0.075" 0.075" 0.095" 0.095" 0.095"


Tip: Installing a 1/4" ID Stat-O-Seal under the pressure adjuster locknut on the FF1600 dry sump pump can help to minimize that pesky oil leak!

Enter desired order quantities below, then click the "Add selected quantities to cart" button.

Order Qty
Part No.
Desc.
Price
Status

3245-10
Condition: New

Stat-O-Seal, #10 Screw Size (0.190 inch), Aluminum

1 to 11: $0.89

12 to 149: $0.79

150 & up: $0.68

In Stock

3245-1/4
Condition: New

Stat-O-Seal, 1/4 inch Size, Aluminum

1 to 9: $1.29

10 to 99: $1.15

100 to 999: $1.00

1000 & up: call   

In Stock

3245-5/16
Condition: New

Stat-O-Seal, 5/16 inch Size, Aluminum

1 to 9: $1.59

10 to 99: $1.41

100 to 999: $1.23

1000 & up: call   

In Stock

3245-3/8
Condition: New

Stat-O-Seal, 3/8 inch Size, Aluminum

1 to 9: $1.59

10 to 99: $1.41

100 & up: $1.23

In Stock

3245-7/16
Condition: New

Stat-O-Seal, 7/16 inch Size, Aluminum

1 to 9: $1.59

10 to 99: $1.41

100 & up: $1.23

In Stock

3245-1/2
Condition: New

Stat-O-Seal, 1/2 inch Size, Aluminum

1 to 9: $1.59

10 to 99: $1.41

100 & up: $1.23

In Stock

3245-9/16
Condition: New

Stat-O-Seal, 9/16 inch Size, Aluminum

1 to 9: $2.19

10 to 99: $1.95

100 & up: $1.71

In Stock

3245-5/8
Condition: New

Stat-O-Seal, 5/8 inch Size, Aluminum

1 to 9: $2.09

10 & up: $1.86

In Stock

3245-3/4
Condition: New

Stat-O-Seal, 3/4 inch Size, Aluminum

1 to 9: $2.09

10 to 99: $1.86

100 & up: $1.63

In Stock

3245-7/8
Condition: New

Stat-O-Seal, 7/8 inch Size, Aluminum

1 to 9: $2.99

10 & up: $2.67

In Stock

3245-1.00
Condition: New

Stat-O-Seal, 1.00 inch Size, Aluminum

1 to 7: $3.19

8 to 59: $2.85

60 & up: $2.51

In Stock
 
Related Product Groups
Sealing Washers & O-Rings

REVIEW SNAPSHOT®

by PowerReviews
Aluminum Stat-O-Seal Sealing Washers
 
4.9

(based on 16 reviews)

Ratings Distribution

  • 5 Stars

     

    (15)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

No Pros

Cons

No Cons

Best Uses

No Best Uses
    • Was this a gift?:
    • No (6)

Reviewed by 16 customers

Displaying reviews 1-10

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5.0

Great washer and seal

By Tom

from Arizona

Verified Buyer

Comments about Aluminum Stat-O-Seal Sealing Washers:

Looked for a washer that would work for my modified fuel system and ran across these. WOW! Awesome washer and seal, worked absolutely perfect for what I was doing. Will definitely buy more of these for future projects.

Service and delivery comments:

Fast service and delivery

  • Was this a gift?:
  • No
 
5.0

They worked as intended.

By Vince from Gezzer Garage LLC

from NT,NY

Verified Buyer

Pros

  • Quality pieces.

Cons

    Best Uses

    • Strainer plate nuts and oil pump nuts

    Comments about Aluminum Stat-O-Seal Sealing Washers:

    I'll buy them again.

    Service and delivery comments:

    As always, service and delivery were spot on.

    • Was this a gift?:
    • No
     
    5.0

    A little bit extra...

    By pacratt

    from Burr Ridge, Illinois

    Verified Buyer

    Comments about Aluminum Stat-O-Seal Sealing Washers:

    I've always preferred the little "extra" with the o-ring in Stat-O-Seals, over standard crush washers.

    Service and delivery comments:

    Never a hassle with Pegasus.
    Friendly,SUPER-FAST service & delivery.

    • Was this a gift?:
    • No
     
    5.0

    Good Stuff

    By Stratohammer

    from In the Heart of Flyover Country

    Verified Buyer

    Comments about Aluminum Stat-O-Seal Sealing Washers:

    These seals solved my intake manifold bolt oil leak issue. I've used them before on aircraft fuel systems (at a much higher price!) and figured they'd do a fine job in the automotive world, too.

    Service and delivery comments:

    Pegasus provided quick and efficient service. Not to mention the great price!

    • Was this a gift?:
    • No
     
    5.0

    high quality

    By Fluidray

    from Newberg, OR

    Verified Buyer

    Comments about Aluminum Stat-O-Seal Sealing Washers:

    Excellent one time oil sealing on bolts.

    Service and delivery comments:

    Speedy delivery.

    • Was this a gift?:
    • No
     
    5.0

    thank you

    By jer

    from albuquerque nm

    Verified Buyer

    Comments about Aluminum Stat-O-Seal Sealing Washers:

    good job

    • Was this a gift?:
    • No
     
    5.0

    washers

    By jessh1

    from Belvidere,NJ

    Verified Buyer

    Comments about Aluminum Stat-O-Seal Sealing Washers:

    I sell these and the customers seem happy

     
    5.0

    Preventing oil pan drips

    By azhealey

    from Tucson, AZ

    Verified Buyer

    Comments about Aluminum Stat-O-Seal Sealing Washers:

    Tried most options to stop drips from oil pan bolts on 60 year of Jaguar. These washers appear to have done the trick. One note that was suggested by a local shop was to carefully 'thread' these over the bolts rather than push them on. Apparently the bolt threads occasionally cut into the rubber...so be careful.

    Service and delivery comments:

    fast and low cost delivery.

    (0 of 1 customers found this review helpful)

     
    5.0

    great product

    By Rob

    from Boston, MA

    Verified Buyer

    Comments about Aluminum Stat-O-Seal Sealing Washers:

    Great for sealing radiator drain plugs.
    Works very well.

     
    5.0

    I will purchase again!

    By Bill

    from Georgetown tx.

    Verified Buyer

    Comments about Aluminum Stat-O-Seal Sealing Washers:

    Seals at lower torque.

    Displaying reviews 1-10

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