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Seamless Carbon Steel Tubing, 0.19 Inch OD, 0.04 Inch Thick, 0.12 Inch ID

Description & Features

This seamless carbon steel tubing conforms to SAE J524 standards, ensuring reliability in demanding hydraulic applications. With an outside diameter of 0.19 inches and a wall thickness of 0.04 inches, this tubing offers a maximum working pressure of 3422 PSI. It is manufactured by Marmon/Keystone and suitable for systems where hydraulic shock and mechanical strain are present.

This tubing is made from seamless low carbon steel, annealed for bending and flaring. It is designed to meet the specifications outlined in SAE J1065, providing a dependable solution for hydraulic fluid transfer. The rated flow is 0.4 GPM.

SKU: 3/16.035

Supplier Part Number (MPN): 3/16.035

Alternate Part Numbers: C1BK42

Specifications

Burst Pressure 20533	Brand Marmon/Keystone	Brand Marmon - Keystone	Pack Size 12.00	UOM FT	I.D. 0.1175 in	Inside Area 0.01	Maximum Working Pressure 3422	O.D. 0.1875 in	Rated Flow 0.40	Safety Factor 6:1	Supplier Part Number 3/16.035	Wall Thickness 0.04	Alternate Part Numbers Alternate Part Number C1BK42	Product Weight 0.09 lbs

Similar Products

Model Number	O.D.	Wall Thickness	I.D.	Inside Area	Rated Flow	Maximum Working Pressure	Burst Pressure	Safety Factor
1/2.049 Seamless Carbon Steel Tubing	0.5 in	0.049	0.402 in	0.1269	6	1797	10780	6:1
1/2.065 Seamless Carbon Steel Tubing	0.5 in	0.065	0.37 in	0.1075	4.9	2383	14300	6:1
1/4.049 Seamless Carbon Steel Tubing	0.25 in	0.049	0.152 in	0.0181	0.8	3593	21560	6:1
3/8.049 Seamless Carbon Steel Tubing	0.375 in	0.049	0.277 in	0.0602	2.8	2396	14373	6:1
3/8.065 Seamless Carbon Steel Tubing	0.375 in	0.065	0.245 in	0.0471	2.6	3178	19067	6:1
5/8.095 Seamless Carbon Steel Tubing	0.63 in	0.095	0.435 in	0.1485	6.9	2787	16720	6:1
1-1/4.095 Seamless Carbon Steel Tubing	1.25 in	0.095	1.06 in	0.882	41	1393	8360	6:1
1-1/4.120 Seamless Carbon Steel Tubing	1.25 in	0.12	1.01 in	0.8008	36.7	1760	10560	6:1
1.065 Seamless Carbon Steel Tubing	1 in	0.065	0.87 in	0.5942	28.1	1192	7150	6:1
1.120 Seamless Carbon Steel Tubing	1 in	0.12	0.76 in	0.4534	20.7	2200	13200	6:1
1/2.083 Seamless Carbon Steel Tubing	0.5 in	0.083	0.334 in	0.0876	4	3043	18260	6:1
3/16.035 Seamless Carbon Steel Tubing	0.1875 in	0.035	0.1175 in	0.0108	0.4	3422	20533	6:1
3/4.049 Seamless Carbon Steel Tubing	0.75 in	0.049	0.652 in	0.3337	15.4	1198	7187	6:1
3/4.065 Seamless Carbon Steel Tubing	0.75 in	0.065	0.62 in	0.3018	12	1589	9533	6:1
3/4.095 Seamless Carbon Steel Tubing	0.75 in	0.095	0.56 in	0.2462	11	2322	13933	6:1
3/4.109 Seamless Carbon Steel Tubing	0.75 in	0.109	0.532 in	0.2222	10.6	2664	15987	6:1
5/8.065 Seamless Carbon Steel Tubing	0.63 in	0.065	0.495 in	0.1923	9	1907	11440	6:1

Product Questions & Answers (1)

Question by: Shawn B on Nov 6, 2025, 4:26 PM

what's the working pressure on this tubing? got a line that sees some hydraulic shock and want to make sure i ain't undersizing it

Answer by: Customer Support on Nov 8, 2025, 6:46 AM

At a 6:1 safety factor, the working pressure comes out to 3422 PSI. That safety factor is already built around applications with considerable hydraulic shock and mechanical strain, so it's the right number to use for your situation. If shock were severe enough to warrant an 8:1 factor, you'd be working with a lower allowable pressure than that. The burst pressure on this tubing is 20,533 PSI, but the 3422 PSI working pressure is what you'd size to under those conditions.