Acetal Homopolymer Hollow Rods

	ID ID

	OD OD

	Wall Thickness Wall Thickness

	Color Color

	White
	Black
	Brown

	Length Length

	Material Material

Delrin® Acetal Plastic

Acetal Plastic

	Flexibility Flexibility

	Semi-Rigid
	Rigid

	Performance Properties Performance Properties

Electrical Insulator

High Strength

Low Thermal Expansion

	Tolerance Rating Tolerance Rating

Oversized

Tight

	For Use With For Use With

Methyl Ethyl Ketone (MEK)

Mineral Oil

Vegetable Oil

Water

	Specifications Met Specifications Met

	Maximum Temperature Maximum Temperature

180° F

185° F

	Minimum Temperature Minimum Temperature

-40° F

-20° F

0° F

	Hardness Hardness

Rockwell R120-R122

Rockwell R115-R118

Rockwell R120

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Dielectric Strength Dielectric Strength

450 V/mil

450-500 V/mil

	Impact Strength Impact Strength

0.7-1 ft.-lbs./in.

1-1.5 ft.-lbs./in.

	Density Density

0.051 lbs./cu. in.

0.054 lbs./cu. in.

	Tensile Strength Tensile Strength

7,690 psi

7,690-8,100 psi

	Flexural Modulus Flexural Modulus

400,000-420,000 psi

400,000-450,000 psi

	Maximum Pressure Maximum Pressure

73 Products

About Plastic

About Plastic and Rubber Tubing

Color: White or Black
Temperature Range:
6" Lengths: 0° to 180° F
All other sizes: -20° to 180° F
Tensile Strength: 7,690 psi (Good)
Impact Strength: 1-1.5 ft.-lbs./in. (Poor)
Hardness: Rockwell R120-R122 (Hard)
For Use Outdoors: No
Specifications Met: See table

Easy to machine to close tolerances, these dimensionally stable tubes resist expanding when exposed to heat and moisture. They have a naturally slippery surface along with excellent wear resistance. Use them to make precision gears, bushings, and bearings. Delrin® acetal resin, also known as acetal homopolymer, is stronger and stiffer than acetal copolymer.

Tight-tolerance tubes that are 6” long are also known as bushing stock. You can slide them over rods to increase the OD, or into shafts to decrease the ID. Their precise sizing also allows ascending sizes to fit inside of each other to increase the wall thickness.

Tubes with an oversized OD also have an undersized ID for finishing to the sizes listed.

For technical drawings and 3-D models, click on a part number.

Tight-Tolerance Tubes

						White
OD	OD Tolerance	ID	ID Tolerance	Specifications Met	Lengths, ft.		Per Ft.
1/32" Wall Thick. (-0.01" to 0.01")
1/8"	-0.010" to 0.010"	1/16"	-0.010" to 0.010"	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	3, 5	00000000	00000
3/16"	-0.010" to 0.010"	1/8"	-0.010" to 0.010"	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	3, 5	00000000	0000
1/16" Wall Thick. (-0.01" to 0.01")
1/4"	-0.010" to 0.010"	1/8"	-0.010" to 0.010"	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	3, 5	00000000	0000
3/8"	-0.010" to 0.010"	1/4"	-0.010" to 0.010"	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	3, 5	00000000	0000
1/2"	-0.010" to 0.010"	3/8"	-0.010" to 0.010"	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	3, 5	00000000	0000
5/8"	-0.010" to 0.010"	1/2"	-0.010" to 0.010"	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	1, 3, 5	00000000	0000
3/4"	-0.010" to 0.010"	5/8"	-0.010" to 0.010"	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	1, 3, 5	00000000	0000
7/8"	-0.010" to 0.010"	3/4"	-0.010" to 0.010"	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	1, 3, 5	00000000	0000
1/8" Wall Thick. (-0.01" to 0.01")
5/8"	-0.010" to 0.010"	3/8"	-0.010" to 0.010"	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	1, 3, 5	00000000	0000
3/4"	-0.010" to 0.010"	1/2"	-0.010" to 0.010"	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	1, 3, 5	00000000	0000
7/8"	-0.010" to 0.010"	5/8"	-0.010" to 0.010"	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	1, 3, 5	00000000	0000
1"	-0.010" to 0.010"	3/4"	-0.010" to 0.010"	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	1, 3, 5	00000000	0000

						White
OD	OD Tolerance	ID	ID Tolerance	Specifications Met	Lg.		Each
1/8" Wall Thick. (-0.005" to 0.005")
1/2"	-0.005" to 0.005"	1/4"	-0.005" to 0.005"	ASTM D4181, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	6"	0000000	000000
3/4"	-0.005" to 0.005"	1/2"	-0.005" to 0.005"	ASTM D4181, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	6"	0000000	00000
1"	-0.005" to 0.005"	3/4"	-0.005" to 0.005"	ASTM D4181, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	6"	0000000	00000
1 1/4"	-0.005" to 0.005"	1"	-0.005" to 0.005"	ASTM D4181, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	6"	0000000	00000
1 1/2"	-0.005" to 0.005"	1 1/4"	-0.005" to 0.005"	ASTM D4181, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	6"	0000000	000000
1 3/4"	-0.005" to 0.005"	1 1/2"	-0.005" to 0.005"	ASTM D4181, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	6"	0000000	000000
2"	-0.005" to 0.005"	1 3/4"	-0.005" to 0.005"	ASTM D4181, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	6"	0000000	000000
2 1/4"	-0.005" to 0.005"	2"	-0.005" to 0.005"	ASTM D4181, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	6"	0000000	000000
2 1/2"	-0.005" to 0.005"	2 1/4"	-0.005" to 0.005"	ASTM D4181, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	6"	0000000	000000

Oversized Tubes

				White		Black
OD	ID	Lengths, ft.	Specifications Met		Per Ft.		Per Ft.
1/16" Wall Thick.
1/4"	1/8"	3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	00000	00000000	00000
5/8"	1/2"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	0000	00000000	0000
1/8" Wall Thick.
1/2"	1/4"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	0000	00000000	0000
3/4"	1/2"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	0000	00000000	0000
7/8"	5/8"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	0000	00000000	0000
1 1/4"	1"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	0000	00000000	0000
1 1/2"	1 1/4"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	00000	00000000	00000
1 3/4"	1 1/2"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	00000	00000000	00000
2"	1 3/4"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	00000	00000000	00000
2 1/4"	2"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	00000	00000000	00000
3/16" Wall Thick.
5/8"	1/4"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	0000	00000000	0000
1/4" Wall Thick.
3/4"	1/4"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	0000	00000000	0000
1"	1/2"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	0000	00000000	00000
1 1/4"	3/4"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	00000	00000000	00000
1 1/2"	1"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	00000	00000000	00000
1 3/4"	1 1/4"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	00000	00000000	00000
2"	1 1/2"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	00000	00000000	00000
2 1/2"	2"	1, 3, 5	ASTM D6778, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51	00000000	00000	00000000	00000

Slippery Wear-Resistant Easy-to-Machine Delrin® Acetal AF Resin Tubes

Color: Brown
Temperature Range: -40° to 185° F
Tensile Strength: 7,690-8,100 psi (Good)
Impact Strength: 0.7-1 ft.-lbs./in. (Poor)
Hardness: Rockwell R115-R118 (Hard)
For Use Outdoors: No
Specifications Met: See table

PTFE is added to these Delrin® acetal resin tubes to make the surface even more slippery and wear resistant. They resist expanding when exposed to heat and moisture, so they can be machined to close tolerances. Fabricate them into pump components, gears, and bearings. The OD is oversized and the ID is undersized for finishing to the sizes listed. Delrin® acetal resin is also known as acetal homopolymer.

For technical drawings and 3-D models, click on a part number.

Oversized Tubes

1/16" Wall Thick.
OD	ID	Specifications Met	Lengths, ft.		Per Ft.
0.25"	1/8"	ASTM D6778, UL 94 HB	1, 2, 3, 4, 5	0000000	00000
0.625"	1/2"	ASTM D6778, UL 94 HB	1, 2, 3, 4, 5	0000000	00000
1/8" Wall Thick.
0.5"	1/4"	ASTM D6778, UL 94 HB	1, 2, 3, 4, 5	0000000	00000
0.75"	1/2"	ASTM D6778, UL 94 HB	1, 2, 3, 4, 5	0000000	00000
1.25"	1"	ASTM D6778, UL 94 HB	1, 2, 3, 4, 5	0000000	00000
3/16" Wall Thick.
0.625"	1/4"	ASTM D6778, UL 94 HB	1, 2, 3, 4, 5	0000000	00000
1/4" Wall Thick.
0.75"	1/4"	ASTM D6778, UL 94 HB	1, 2, 3, 4, 5	0000000	00000
1"	1/2"	ASTM D6778, UL 94 HB	1, 2, 3, 4, 5	0000000	00000
1.25"	3/4"	ASTM D6778, UL 94 HB	1, 2, 3, 4, 5	0000000	00000
1.5"	1"	ASTM D6778, UL 94 HB	1, 2, 3, 4, 5	0000000	00000
2"	1 1/2"	ASTM D6778, UL 94 HB	1, 2, 3, 4, 5	0000000	00000

Moisture-Resistant Hard Plastic Tubing for Air and Water

Rigid
Compatible with Compression Tube Fittings
Hard (Rockwell 120)
Temperature Range: -20° to 180° F

Made of moisture-resistant acetal, this tubing won’t soften and lose strength, even in high-humidity environments. Tubing is opaque, so you cannot see what’s flowing through the line. It is rigid and will not bend.

For technical drawings and 3-D models, click on a part number.

Opaque Acetal Plastic
ID	OD	Wall Thick.	Max. Pressure	Color	Lg., ft.		Each
1/8"	1/4"	1/16"	430 psi @ 72° F	White	5	000000	00000
11/64"	1/4"	3/64"	260 psi @ 72° F	White	5	000000	0000
1/4"	3/8"	1/16"	280 psi @ 72° F	White	5	000000	00000
3/8"	1/2"	1/16"	200 psi @ 72° F	White	5	000000	00000
1/2"	3/4"	1/8"	280 psi @ 72° F	White	5	000000	00000

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About Plastic

About Plastic and Rubber Tubing

Wear-Resistant Easy-to-Machine Delrin® Acetal Resin Tubes

Slippery Wear-Resistant Easy-to-Machine Delrin® Acetal AF Resin Tubes

Moisture-Resistant Hard Plastic Tubing for Air and Water