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6405-20-12-O by Brennan Inc. | -20 Male O-Ring Boss x -12 Female Pipe | Straight | Steel

6405-20-12-O by Brennan Inc. | -20 Male O-Ring Boss x -12 Female Pipe | Straight | Steel

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$22.74
$22.74 - $22.74
$22.74
$20.21
$20.21 - $20.21
$20.21

Brennan Inc.
Tube Fittings & Adapters: 6405-O - Male O-Ring Boss x Female Pipe Straight
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: 6405-20-12-O Brennan
Shape (Orientation): Straight
Material(s): Steel
Part Number Material Tube O.D B SAEORB A NPTF B Drill L Length C4 Hex
6405-02-02-O Steel 1/8" 5/16-24" 1/8-27" 0.062" 0.950" 0.562"
6405-02-04-O Steel 1/8" 5/16-24" 1/4-18" 0.062" 1.240" 0.750"
6405-03-02-O Steel 3/16" 3/8-24" 1/8-27" 0.125" 0.950" 0.562"
6405-03-04-O Steel 3/16" 3/8-24" 1/4-18" 0.125" 1.200" 0.750"
6405-04-02-O Steel 1/4" 7/16-20" 1/8-27" 0.172" 1.000" 0.562"
6405-04-04-O Steel 1/4" 7/16-20" 1/4-18" 0.172" 1.160" 0.750"
6405-04-06-O Steel 1/4" 7/16-20" 3/8-18" 0.172" 1.350" 0.875"
6405-05-02-O Steel 5/16" 1/2-20" 1/8-27" 0.234" 0.99" 0.625"
6405-05-04-O Steel 5/16" 1/2-20" 1/4-18" 0.234" 1.20" 0.750"
6405-05-06-O Steel 5/16" 1/2-20" 3/8-18" 0.234" 1.300" 0.875"
6405-06-02-O Steel 3/8" 9/16-18" 1/8-27" 0.297" 1.02" 0.688"
6405-06-04-O Steel 3/8" 9/16-18" 1/4-18" 0.297" 1.090" 0.750"
6405-06-06-O Steel 3/8" 9/16-18" 3/8-18" 0.297" 1.331" 0.875"
6405-06-08-O Steel 3/8" 9/16-18" 1/2-14" 0.297" 1.500" 1.125"
6405-08-02-O Steel 1/2" 3/4-16" 1/8-27" 0.315" 0.800" 0.875"
6405-08-04-O Steel 1/2" 3/4-16" 1/4-18" 0.391" 1.020" 0.875"
6405-08-06-O Steel 1/2" 3/4-16" 3/8-18" 0.391" 1.280" 0.875"
6405-08-08-O Steel 1/2" 3/4-16" 1/2-14" 0.391" 1.470" 1.125"
6405-08-12-O Steel 1/2" 3/4-16" 3/4-14" 0.391" 1.780" 1.375"
6405-10-04-O Steel 5/8" 7/8-14" 1/4-18" 0.431" 0.930" 1.000"
6405-10-06-O Steel 5/8" 7/8-14" 3/8-18" 0.484" 1.400" 1.000"
6405-10-08-O Steel 5/8" 7/8-14" 1/2-14" 0.484" 1.550" 1.125"
6405-10-12-O Steel 5/8" 7/8-14" 3/4-14" 0.484" 1.71" 1.375"
6405-12-02-O Steel 3/4" 1-1/16-12" 1/8-27" 0.609" 1.090" 1.250"
6405-12-04-O Steel 3/4" 1-1/16-12" 1/4-18" 0.609" 1.090" 1.250"
6405-12-06-O Steel 3/4" 1-1/16-12" 3/8-18" 0.609" 1.490" 1.250"
6405-12-08-O Steel 3/4" 1-1/16-12" 1/2-14" 0.609" 1.410" 1.250"
6405-12-12-O Steel 3/4" 1-1/16-12" 3/4-14" 0.609" 1.590" 1.375"
6405-12-16-O Steel 3/4" 1-1/16-12" 1-11-1/2" 0.609" 2.030" 1.625"
6405-14-06-O Steel - - - - - -
6405-14-08-O Steel 7/8" 1-3/16-12" 1/2-14" 0.690" 1.090" 1.375"
6405-14-12-O Steel 7/8" 1-3/16-12" 3/4-14" 0.719" 1.78" 1.375"
6405-14-16-O Steel 7/8" 1-3/16-12" 1-11-1/2" 0.719" 2.18" 1.625"
6405-16-02-O Steel - - - - - -
6405-16-04-O Steel 1" 1-5/16-12" 1/4-18" 0.431" 1.136" 1.500"
6405-16-06-O Steel 1" 1-5/16-12" 3/8-18" 0.844" 1.125" 1.500"
6405-16-08-O Steel 1" 1-5/16-12" 1/2-14" 0.844" 1.72" 1.500"
6405-16-12-O Steel 1" 1-5/16-12" 3/4-14" 0.844" 1.620" 1.500"
6405-16-16-O Steel 1" 1-5/16-12" 1-11-1/2" 0.844" 1.90" 1.625"
6405-16-20-O Steel 1" 1-5/16-12" 1-1/4-11-1/2" 0.844" 2.27" 2.000"
6405-16-24-O Steel 1" 1-5/16-12" 1-1/2-11-1/2" 0.844" 2.280" 2.375"
6405-20-08-O Steel 1-1/4" 1-5/8-12" 1/2-14" 0.649" 1.200" 1.875"
6405-20-12-O Steel 1-1/4" 1-5/8-12" 3/4-14" 0.854" 1.200" 1.875"
6405-20-16-O Steel 1-1/4" 1-5/8-12" 1-11-1/2" 1.078" 1.000" 1.875"
6405-20-20-O Steel 1-1/4" 1-5/8-12" 1-1/4-11-1/2" 1.078" 1.970" 2.000"
6405-20-24-O Steel 1-1/4" 1-5/8-12" 1-1/2-11-1/2" 1.078" 2.300" 2.375"
6405-20-32-O Steel 1-1/4" 1-5/8-12" 2-11-1/2" 1.078" 2.400" 2.875"
6405-24-04-O Steel 1-1/2" 1-7/8-12" 1/4-18" 0.437" 1.27" 2.125"
6405-24-06-O Steel - - - - - -
6405-24-08-O Steel - - - - - -
6405-24-12-O Steel 1-1/2" 1-7/8-12" 3/4-14" 0.854" 1.27" 2.125"
6405-24-16-O Steel 1-1/2" 1-7/8-12" 1-11-1/2" 1.312" 1.75" 2.125"
6405-24-20-O Steel 1-1/2" 1-7/8-12" 1-1/4-11-1/2" 1.312" 2.160" 2.125"
6405-24-24-O Steel 1-1/2" 1-7/8-12" 1-1/2-11-1/2" 1.312" 2.160" 2.375"
6405-24-32-O Steel 1-1/2" 1-7/8-12" 2-11-1/2" 1.312" 2.400" 2.875"
6405-32-16-O Steel 2" 2-1/2-12" 1-11-1/2" 1.156" 1.430" 2.750"
6405-32-20-O Steel 2" 2-1/2-12" 1-1/4-11-1/2" 1.781" 2.000" 2.750"
6405-32-24-O Steel 2" 2-1/2-12" 1-1/2-11-1/2" 1.734" 2.000" 2.750"
6405-32-32-O Steel 2" 2-1/2-12" 2-11-1/2" 1.781" 2.24" 2.875"
 
6405-20-12-O-B Brass 1-1/4" 1-5/8-12" 3/4-14" 0.854" 1.200" 1.875"
 
6405-04-02-O-SS Stainless Steel 1/4" 7/16-20" 1/8-27" 0.172" 1.000" 0.562"
6405-04-04-O-SS Stainless Steel 1/4" 7/16-20" 1/4-18" 0.172" 1.160" 0.750"
6405-05-04-O-SS Stainless Steel 5/16" 1/2-20" 1/4-18" 0.234" 1.20" 0.750"
6405-06-04-O-SS Stainless Steel 3/8" 9/16-18" 1/4-18" 0.297" 1.090" 0.750"
6405-06-06-O-SS Stainless Steel 3/8" 9/16-18" 3/8-18" 0.297" 1.331" 0.875"
6405-06-08-O-SS Stainless Steel 3/8" 9/16-18" 1/2-14" 0.297" 1.500" 1.125"
6405-08-02-O-SS Stainless Steel 1/2" 3/4-16" 1/8-27" 0.391" 0.800" 0.875"
6405-08-04-O-SS Stainless Steel 1/2" 3/4-16" 1/4-18" 0.391" 1.020" 0.875"
6405-08-06-O-SS Stainless Steel 1/2" 3/4-16" 3/8-18" 0.391" 1.280" 0.875"
6405-08-08-O-SS Stainless Steel 1/2" 3/4-16" 1/2-14" 0.391" 1.470" 1.125"
6405-10-04-O-SS Stainless Steel 5/8" 7/8-14" 1/4-18" 0.431" 0.930" 1.000"
6405-10-06-O-SS Stainless Steel 5/8" 7/8-14" 3/8-18" 0.484" 1.400" 1.000"
6405-10-08-O-SS Stainless Steel 5/8" 7/8-14" 1/2-14" 0.484" 1.550" 1.125"
6405-10-12-O-SS Stainless Steel 5/8" 7/8-14" 3/4-14" 0.484" 1.71" 1.375"
6405-12-06-O-SS Stainless Steel 3/4" 1-1/16-12" 3/8-18" 0.609" 1.490" 1.250"
6405-12-08-O-SS Stainless Steel 3/4" 1-1/16-12" 1/2-14" 0.609" 1.410" 1.250"
6405-12-12-O-SS Stainless Steel 3/4" 1-1/16-12" 3/4-14" 0.609" 1.590" 1.375"
6405-12-16-O-SS Stainless Steel 3/4" 1-1/16-12" 1-11-1/2" 0.609" 2.030" 1.625"
6405-14-08-O-SS Stainless Steel 7/8" 1-3/16-12" 1/2-14" 0.719" 1.090" 1.375"
6405-14-12-O-SS Stainless Steel 7/8" 1-3/16-12" 3/4-14" 0.719" 1.78" 1.375"
6405-14-16-O-SS Stainless Steel 7/8" 1-3/16-12" 1-11-1/2" 0.719" 2.18" 1.625"
6405-16-08-O-SS Stainless Steel 1" 1-5/16-12" 1/2-14" 0.844" 1.72" 1.500"
6405-16-12-O-SS Stainless Steel 1" 1-5/16-12" 3/4-14" 0.844" 1.620" 1.500"
6405-16-16-O-SS Stainless Steel 1" 1-5/16-12" 1-11-1/2" 0.844" 1.90" 1.625"
6405-20-12-O-SS Stainless Steel 1-1/4" 1-5/8-12" 3/4-14" 0.921" 1.200" 1.875"
6405-20-16-O-SS Stainless Steel 1-1/4" 1-5/8-12" 1-11-1/2" 1.078" 1.000" 1.875"
6405-20-20-O-SS Stainless Steel 1-1/4" 1-5/8-12" 1-1/4-11-1/2" 1.078" 1.970" 2.000"
6405-20-24-O-SS Stainless Steel 1-1/4" 1-5/8-12" 1-1/2-11-1/2" 1.078" 2.300" 2.375"
6405-24-12-O-SS Stainless Steel 1-1/2" 1-7/8-12" 3/4-14" 0.854" 1.27" 2.125"
6405-24-16-O-SS Stainless Steel 1-1/2" 1-7/8-12" 1-11-1/2" 1.312" 1.75" 2.125"
6405-24-24-O-SS Stainless Steel 1-1/2" 1-7/8-12" 1-1/2-11-1/2" 1.312" 2.160" 2.375"
6405-32-24-O-SS Stainless Steel 2" 2-1/2-12" 1-1/2-11-1/2" 1.734" 2.000" 2.750"
6405-32-32-O-SS Stainless Steel 2" 2-1/2-12" 2-11-1/2" 1.781" 2.24" 2.875"
Brennan

Brennan

Brennan Industries, founded in 1953, distinguishes itself with a commitment to quality in hydraulic and pneumatic fittings. With over 120,000 styles and sizes, Brennan serves a global market through extensive distribution networks. As a privately held company, Brennan's principals actively oversee operations, ensuring top-tier customer service and responsiveness. Their products meet or exceed J.I.C./S.A.E. and international standards, supported by ISO 9001:2015, AS9100D, and NADCAP certifications. Brennan's offerings include standard and custom solutions, backed by robust engineering support. With 13 distribution centers worldwide, Brennan delivers exceptional quality, service, and competitive pricing for all hydraulic and pneumatic fitting needs.

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