9/64” (0.140625) Inch Outer Diameter Stock Extension Springs

Definition of a 9/64” Outer Diameter Extension Spring:

A 9/64” (nine sixty-fourths) Outer Diameter Extension spring has an outer diameter of 0.140625 inches; with lengths inside hooks from 5/16” (0.3125 inches) to 7 7/8” (7.875 inches). These springs are found in our stock extension spring catalog and are ready made.

The Spring Store by Acxess Spring provides customers with stock extension springs. Here is a separate list of standard extension springs with a 9/64” outer diameter.

Showing 34 out of 4342 items

TSS Part#	Outer Diameter by Fractions	Outer Diameter (in.) Decimals	Inner Diameter (in.) Decimals	Length Inside Hook by Fractions	Length Inside Hook (in.) Decimals	Rate (lbs./in.)	Initial Tension (lbs.)	Sugg. Max. Defl. (in.)	Sugg. Max. Load (lbs.)	Wire Dia. (in.)	Total Coils	Material Type	Hook Type	Finish
PE016-140-8.250-MW-0.310-MH-N-IN	9/64 =	0.140	0.108	5/16 =	0.310	7.100	0.200	0.190	1.500	0.016	8.250	MW-Music Wire	MH	N
PE013-140-15.077-MW-0.380-MH-Z-IN	9/64 =	0.140	0.114	3/8 =	0.380	1.700	0.070	0.490	0.900	0.013	15.077	MW-Music Wire	MH	Z
PE010-140-22.000-MW-0.410-MH-N-IN	9/64 =	0.140	0.120	13/32 =	0.410	0.380	0.020	1.000	0.410	0.010	22.000	MW-Music Wire	MH	N
PE013-140-17.385-MW-0.410-MH-N-IN	9/64 =	0.140	0.114	13/32 =	0.410	1.000	0.070	0.820	0.900	0.013	17.385	MW-Music Wire	MH	N
PE013-140-19.693-MW-0.440-MH-N-IN	9/64 =	0.140	0.114	7/16	0.440	1.000	0.070	0.810	0.900	0.013	19.693	MW-Music Wire	MH	N
PE014-140-18.429-MW-0.440-MH-N-IN	9/64 =	0.140	0.112	7/16	0.440	2.100	0.100	0.490	1.100	0.014	18.429	MW-Music Wire	MH	N
PE012-140-23.667-MW-0.470-MH-Z-IN	9/64 =	0.140	0.116	15/32 =	0.470	0.790	0.050	0.840	0.710	0.012	23.667	MW-Music Wire	MH	Z
PE017-140-19.059-MW-0.500-MH-Z-IN	9/64 =	0.140	0.106	1/2 =	0.500	3.300	0.200	0.500	1.900	0.017	19.059	MW-Music Wire	MH	Z
PE016-140-20.125-MW-0.500-MH-N-IN	9/64 =	0.140	0.108	1/2 =	0.500	3.600	0.200	0.390	1.500	0.016	20.125	MW-Music Wire	MH	N
PE016-140-20.125-MW-0.500-MH-GI-IN	9/64 =	0.140	0.108	1/2 =	0.500	2.400	0.200	0.570	1.500	0.016	20.125	MW-Music Wire	MH	GI
PE017-140-24.353-MW-0.590-MH-N-IN	9/64 =	0.140	0.106	19/32 =	0.590	3.100	0.200	0.530	1.900	0.017	24.353	MW-Music Wire	MH	N
PE015-140-30.000-MW-0.630-MH-N-IN	9/64 =	0.140	0.110	5/8 =	0.630	1.400	0.100	0.840	1.300	0.015	30.000	MW-Music Wire	MH	N
PE016-140-28.250-SST-0.630-MH-N-IN	9/64 =	0.140	0.108	5/8 =	0.630	1.800	0.200	0.520	1.100	0.016	28.250	SST-Stainless Steel	MH	N
PE015-140-38.000-MW-0.750-MH-N-IN	9/64 =	0.140	0.110	3/4 =	0.750	1.000	0.100	1.100	1.300	0.015	38.000	MW-Music Wire	MH	N
PE015-140-42.000-MW-0.810-MH-N-IN	9/64 =	0.140	0.110	13/16 =	0.810	0.980	0.100	1.200	1.300	0.015	42.000	MW-Music Wire	MH	N
PE020-140-33.500-MW-0.840-MH-Z-IN	9/64 =	0.140	0.100	27/32 =	0.840	4.000	0.400	0.660	3.000	0.020	33.500	MW-Music Wire	MH	Z
PE015-140-46.667-MW-0.880-MH-Z-IN	9/64 =	0.140	0.110	7/8 =	0.880	0.770	0.100	1.500	1.300	0.015	46.667	MW-Music Wire	MH	Z
PE022-140-32.455-SST-0.880-MH-N-IN	9/64 =	0.140	0.096	7/8 =	0.880	5.900	0.600	0.380	2.900	0.022	32.455	SST-Stainless Steel	MH	N
PE011-140-79.273-MW-1.060-MH-Z-IN	9/64 =	0.140	0.118	1 1/16 =	1.060	0.120	0.030	4.200	0.550	0.011	79.273	MW-Music Wire	MH	Z
PE016-140-63.625-MW-1.250-MH-Z-IN	9/64 =	0.140	0.108	1 1/4 =	1.250	0.770	0.200	1.800	1.500	0.016	63.625	MW-Music Wire	MH**	Z
PE014-140-80.572-MW-1.310-MH-Z-IN	9/64 =	0.140	0.112	1 5/16 =	1.310	0.360	0.090	2.900	1.100	0.014	80.572	MW-Music Wire	MH	Z
PE014-140-94.143-MW-1.500-MH-Z-IN	9/64 =	0.140	0.112	1 1/2 =	1.500	0.300	0.100	3.500	1.100	0.014	94.143	MW-Music Wire	MH	Z
PE016-140-82.625-MW-1.500-MH-Z-IN	9/64 =	0.140	0.108	1 1/2 =	1.500	0.600	0.200	2.300	1.600	0.016	82.625	MW-Music Wire	MH	Z
PE012-140-120.334-MW-1.630-MH-N-IN	9/64 =	0.140	0.116	1 5/8 =	1.630	0.120	0.050	5.500	0.710	0.012	120.334	MW-Music Wire	MH	N
PE014-140-121.286-MW-1.880-MH-Z-IN	9/64 =	0.140	0.112	1 7/8 =	1.880	0.230	0.100	4.500	1.100	0.014	121.286	MW-Music Wire	MH	Z
PE016-140-106.375-MW-1.880-MH-Z-IN	9/64 =	0.140	0.108	1 7/8 =	1.880	0.470	0.200	3.000	1.600	0.016	106.375	MW-Music Wire	MH	Z
PE014-140-165.572-MW-2.500-MH-Z-IN	9/64 =	0.140	0.112	2 1/2 =	2.500	0.170	0.100	6.200	1.100	0.014	165.572	MW-Music Wire	MH	Z
PE016-140-145.125-MW-2.500-MH-Z-IN	9/64 =	0.140	0.108	2 1/2 =	2.500	0.340	0.200	4.100	1.600	0.016	145.125	MW-Music Wire	MH	Z
PE014-140-165.572-MW-2.500-MH-N-IN	9/64 =	0.140	0.112	2 1/2 =	2.500	0.180	0.100	5.900	1.100	0.014	165.572	MW-Music Wire	MH	N
PE015-140-154.667-MW-2.500-MH-N-IN	9/64 =	0.140	0.110	2 1/2 =	2.500	0.240	0.100	4.700	1.300	0.015	154.667	MW-Music Wire	MH	N
PE019-140-201.474-MW-4.000-MH-Z-IN	9/64 =	0.140	0.102	4 =	4.000	0.530	0.300	4.300	2.600	0.019	201.474	MW-Music Wire	MH	Z
PE030-140-161.667-MW-5.000-MH-Z-IN	9/64 =	0.140	0.080	5 =	5.000	5.300	3.000	1.500	10.000	0.030	161.667	MW-Music Wire	MH	Z
PE022-140-262.455-MW-5.940-MH-Z-IN	9/64 =	0.140	0.096	5 15/16 =	5.940	0.780	0.600	4.400	4.100	0.022	262.455	MW-Music Wire	MH	Z
PE017-140-453.177-MW-7.880-MH-Z-IN	9/64 =	0.140	0.106	7 7/8 =	7.880	0.140	0.200	12.000	1.900	0.017	453.177	MW-Music Wire	MH	Z

Your 9/64” extension spring's dimensions and measurements have a lot to do with your standard extension spring's force. For this reason, it is very important that the extension spring measurements are precise. Changing the wire diameter by even 0.001" can make a great difference on how strong your spring will be and how much it will be able to travel; especially with a spring as small as a 9/64” outer diameter extension spring.

How To Measure Your 9/64” Outer Diameter Stock Extension Spring

The 9/64” outer diameter standard extension springs provided here offer customers a wide variation of rate, load, and travel capacities. Every spring has it's own amount of force due to the different physical dimensions each stock extension spring has like wire diameter or total coils. The force chart at the bottom of the page will explain what adjustments will make your spring stronger or weaker.

For more force you must either decrease your extension spring's outer diameter, increase the wire diameter, take some coils out, or make the length inside hooks shorter (which will also reduce the amount of coils) so that it'll take the spring more force to extend to the desired extended length. For less force, you must increase the outer diameter, decrease the wire diameter, add coils, or make the length inside hooks of your spring longer (which will also increase the amount of coils) so that it'll take less force for the extension spring to extend to the desired extended length.

These stock 9/64” outer diameter stock extension springs are made out of either Stainless Steel Wire or Music Wire. Music wire may sometimes be plated in a zinc or gold irridite finish. Other plating options like black oxide are available on other standard extension spring sizes.

Welcome to our Technical Information resources page where you will find articles that'll help you with your spring design or help you get around The Spring Store website by explaining what we offer and how it works.

Technical Information Design Articles

Compression Spring Tech

Extension Spring Tech

Torsional Spring Tech

Conical Spring Tech

Spring Rate

Spring Design

Compression Spring Finder

Find and buy stock compression springs in two simple steps using Spring Finder. This easy to use search engine makes it easy to find and buy the stock spring you need.

The following simple steps will get you started:

In the basic search, you can enter:

For the advanced search, you must select “Search More Fields”. Here you can enter:

Once you’ve entered your spring’s specifications, click “Search”.

The following are the specifications you can select to organize your search:

Spring Finder Results in Table

Spring Finder Results in Grid View

Extension Spring Finder

Find and buy stock extension springs in two easy steps using Spring Finder. This simple tool makes finding the stock tension spring you need a fast and productive task. Search through over 4,000 designs off the shelf.

The following simple steps will get you started:

In the basic search, you can enter:

To access the parameters in the advanced search, click on “Search More Fields” where the following dimensions will be available:

The fields are not mandatory so you can choose whatever dimension you feel needed and click “Search” once you have done so.

These are the specifications you can organize your extension springs by:

Spring Finder Results in Table

Spring Finder Results in Grid View

Torsion Spring Finder

Find and buy stock torsion springs in two easy steps using Spring Finder. This simple tool makes finding the stock torsion spring you need a fast and productive task. Search through about 1,000 designs off the shelf.

The following simple steps will get you started:

In the basic search, you can enter:

To access the parameters in the advanced search, click on “Search More Fields” where the following dimensions will be available:

The fields are not mandatory so you can choose whatever dimension you want and click “Search” once you have done so.

These are the specifications you can organize your torsion springs by:

Spring Finder Results in Table

Spring Finder Results in Grid View

Conical Spring Finder

Find and buy stock conical springs in two simple steps using Spring Finder. This easy to use search engine makes it easy to find and buy the stock spring you need.

The following simple steps will get you started:

In the basic search, you can enter:

For the advanced search, you must select “Search More Fields”. Here you can enter:

Once you've entered your spring's specifications, click “Search”.

The following are the specifications you can select to organize your search:

Spring Finder Results in Table

Spring Finder Results in Grid View

9/64” (0.140625) Inch Outer Diameter Stock Extension Springs

Definition of a 9/64” Outer Diameter Extension Spring:

A 9/64” (nine sixty-fourths) Outer Diameter Extension spring has an outer diameter of 0.140625 inches; with lengths inside hooks from 5/16” (0.3125 inches) to 7 7/8” (7.875 inches). These springs are found in our stock extension spring catalog and are ready made.