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Oil-Resistant Square Profile Buna-N O-Rings【5-100 Pieces Per Package】

USA Industrials

Square profile O-Rings require less squeeze to make an effective seal and won’t roll or twist in moving applications. Buna-N is the most commonly used O-Ring material due to its strength and durability. It is suitable for a broad range of fluids including oils, water, and mild chemicals.

Part Number

Configured Part Number is shown.

Drawing/Specifications
Part Numbers

part number	material	inch/metric	dash size	cross section (fractional)	id (fractional)	od (fractional)	durometer	cross section shape	color	grade
zusahsq70006	buna-n	inch	006	1/16"	1/8"	1/4"	70a	square	black	standard
zusahsq70007	buna-n	inch	007	1/16"	5/32"	9/32"	70a	square	black	standard
zusahsq70008	buna-n	inch	008	1/16"	3/16"	5/16"	70a	square	black	standard
zusahsq70009	buna-n	inch	009	1/16"	7/32"	11/32"	70a	square	black	standard
zusahsq70010	buna-n	inch	010	1/16"	1/4"	3/8"	70a	square	black	standard
zusahsq70011	buna-n	inch	011	1/16"	5/16"	7/16"	70a	square	black	standard
zusahsq70012	buna-n	inch	012	1/16"	3/8"	1/2"	70a	square	black	standard
zusahsq70013	buna-n	inch	013	1/16"	7/16"	9/16"	70a	square	black	standard
zusahsq70014	buna-n	inch	014	1/16"	1/2"	5/8"	70a	square	black	standard
zusahsq70015	buna-n	inch	015	1/16"	9/16"	11/16"	70a	square	black	standard
zusahsq70016	buna-n	inch	016	1/16"	5/8"	3/4"	70a	square	black	standard
zusahsq70017	buna-n	inch	017	1/16"	11/16"	13/16"	70a	square	black	standard
zusahsq70019	buna-n	inch	019	1/16"	13/16"	15/16"	70a	square	black	standard
zusahsq70020	buna-n	inch	020	1/16"	7/8"	1"	70a	square	black	standard
zusahsq70021	buna-n	inch	021	1/16"	15/16"	1-1/16"	70a	square	black	standard
zusahsq70024	buna-n	inch	024	1/16"	1-1/8"	1-1/4"	70a	square	black	standard
zusahsq70027	buna-n	inch	027	1/16"	1-5/16"	1-7/16"	70a	square	black	standard
zusahsq70028	buna-n	inch	028	1/16"	1-3/8"	1-1/2"	70a	square	black	standard
zusahsq70029	buna-n	inch	029	1/16"	1-1/2"	1-5/8"	70a	square	black	standard
zusahsq70032	buna-n	inch	032	1/16"	1-7/8"	2"	70a	square	black	standard
zusahsq70110	buna-n	inch	110	3/32"	3/8"	9/16"	70a	square	black	standard
zusahsq70111	buna-n	inch	111	3/32"	7/16"	5/8"	70a	square	black	standard
zusahsq70112	buna-n	inch	112	3/32"	1/2"	11/16"	70a	square	black	standard
zusahsq70113	buna-n	inch	113	3/32"	9/16"	3/4"	70a	square	black	standard
zusahsq70114	buna-n	inch	114	3/32"	5/8"	13/16"	70a	square	black	standard
zusahsq70115	buna-n	inch	115	3/32"	11/16"	7/8"	70a	square	black	standard
zusahsq70116	buna-n	inch	116	3/32"	3/4"	15/16"	70a	square	black	standard
zusahsq70117	buna-n	inch	117	3/32"	13/16"	1"	70a	square	black	standard
zusahsq70119	buna-n	inch	119	3/32"	15/16"	1-1/8"	70a	square	black	standard
zusahsq70126	buna-n	inch	126	3/32"	1-3/8"	1-9/16"	70a	square	black	standard
zusahsq70128	buna-n	inch	128	3/32"	1-1/2"	1-11/16"	70a	square	black	standard
zusahsq70132	buna-n	inch	132	3/32"	1-3/4"	1-15/16"	70a	square	black	standard
zusahsq70133	buna-n	inch	133	3/32"	1-13/16"	2"	70a	square	black	standard
zusahsq70134	buna-n	inch	134	3/32"	1-7/8"	2-1/16"	70a	square	black	standard
zusahsq70135	buna-n	inch	135	3/32"	1-15/16"	2-1/8"	70a	square	black	standard
zusahsq70136	buna-n	inch	136	3/32"	2"	2-3/16"	70a	square	black	standard
zusahsq70137	buna-n	inch	137	3/32"	2-1/16"	2-1/4"	70a	square	black	standard
zusahsq70138	buna-n	inch	138	3/32"	2-1/8"	2-5/16"	70a	square	black	standard
zusahsq70139	buna-n	inch	139	3/32"	2-3/16"	2-3/8"	70a	square	black	standard
zusahsq70210	buna-n	inch	210	1/8"	3/4"	1"	70a	square	black	standard
zusahsq70211	buna-n	inch	211	1/8"	13/16"	1-1/16"	70a	square	black	standard
zusahsq70212	buna-n	inch	212	1/8"	7/8"	1-1/8"	70a	square	black	standard
zusahsq70214	buna-n	inch	214	1/8"	1"	1-1/4"	70a	square	black	standard
zusahsq70215	buna-n	inch	215	1/8"	1-1/16"	1-5/16"	70a	square	black	standard
zusahsq70216	buna-n	inch	216	1/8"	1-1/8"	1-3/8"	70a	square	black	standard
zusahsq70219	buna-n	inch	219	1/8"	1-5/16"	1-9/16"	70a	square	black	standard
zusahsq70220	buna-n	inch	220	1/8"	1-3/8"	1-5/8"	70a	square	black	standard
zusahsq70221	buna-n	inch	221	1/8"	1-7/16"	1-11/16"	70a	square	black	standard
zusahsq70222	buna-n	inch	222	1/8"	1-1/2"	1-3/4"	70a	square	black	standard
zusahsq70223	buna-n	inch	223	1/8"	1-5/8"	1-7/8"	70a	square	black	standard
zusahsq70225	buna-n	inch	225	1/8"	1-7/8"	2-1/8"	70a	square	black	standard
zusahsq70227	buna-n	inch	227	1/8"	2-1/8"	2-3/8"	70a	square	black	standard
zusahsq70229	buna-n	inch	229	1/8"	2-3/8"	2-5/8"	70a	square	black	standard
zusahsq70230	buna-n	inch	230	1/8"	2-1/2"	2-3/4"	70a	square	black	standard
zusahsq70231	buna-n	inch	231	1/8"	2-5/8"	2-7/8"	70a	square	black	standard
zusahsq70232	buna-n	inch	232	1/8"	2-3/4"	3"	70a	square	black	standard
zusahsq70234	buna-n	inch	234	1/8"	3"	3-1/4"	70a	square	black	standard
zusahsq70235	buna-n	inch	235	1/8"	3-1/8"	3-3/8"	70a	square	black	standard
zusahsq70237	buna-n	inch	237	1/8"	3-3/8"	3-5/8"	70a	square	black	standard
zusahsq70240	buna-n	inch	240	1/8"	3-3/4"	4"	70a	square	black	standard
zusahsq70246	buna-n	inch	246	1/8"	4-1/2"	4-3/4"	70a	square	black	standard
zusahsq70325	buna-n	inch	325	3/16"	1-1/2"	1-7/8"	70a	square	black	standard
zusahsq70326	buna-n	inch	326	3/16"	1-5/8"	2"	70a	square	black	standard
zusahsq70336	buna-n	inch	336	3/16"	2-7/8"	3-1/4"	70a	square	black	standard
zusahsq70337	buna-n	inch	337	3/16"	3"	3-3/8"	70a	square	black	standard

: 30; 45; 60

Part Number
ZUSAHSQ70028
ZUSAHSQ70126
ZUSAHSQ70220

Number of pc(s). included in pkg.	Minimum order quantity	Days to Ship	O.D. D (Ø)	I.D. d (Ø)	Dash Size	Cross Section (Actual)	Cross Section (Fractional)	ID (Actual)	ID (Fractional)	OD (Actual)	OD (Fractional)
25 Pieces Per Package	1 Pack(s)	13 Days	1-1/2"	1-3/8"	028	.070"	1/16"	1.364"	1-3/8"	1.504"	1-1/2"
25 Pieces Per Package	1 Pack(s)	13 Days	1-9/16"	1-3/8"	126	.103"	3/32"	1.362"	1-3/8"	1.568"	1-9/16"
25 Pieces Per Package	1 Pack(s)	13 Days	1-5/8"	1-3/8"	220	.139"	1/8"	1.359"	1-3/8"	1.637"	1-5/8"

Basic Information

Material	Buna-N Food Grade	Environment, Applications	Mineral Oil Resistant / Water Resistant	Material	Buna-N
Durometer	70A	Hardness	Standard	Cross Section Shape	Square
Color	Black	Grade	Standard	Temperature Range	-40° to 250° F

Configure

3 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Dash Size
006

007

008

009

010

011

012

013

014

015

016

017

019

020

021

024

027

028

029

032

110

111

112

113

114

115

116

117

119

126

128

132

133

134

135

136

137

138

139

210

211

212

214

215

216

219

220

221

222

223

225

227

229

230

231

232

234

235

237

240

246

325

326

336

337
Clear
Cross Section (Actual)
0.070"

0.103"

0.103"

0.139"

0.210"
Clear
Cross Section (Fractional)
1/16"

3/32"

1/8"

3/16"
Clear
ID (Actual)
0.114"

0.145"

0.176"

0.208"

0.239"

0.301"

0.362"

0.364"

0.424"

0.426"

0.487"

0.489"

0.549"

0.551"

0.612"

0.614"

0.674"

0.676"

0.734"

0.737"

0.796"

0.799"

0.801"

0.859"

0.864"

0.924"

0.926"

0.984"

1.046"

1.109"

1.114"

1.296"

1.301"

1.359"

1.362"

1.364"

1.421"

1.475"

1.484"

1.487"

1.489"

1.600"

1.609"

1.737"

1.799"

1.859"

1.862"

1.864"

1.925"

1.987"

2.050"

2.109"

2.112"

2.175"

2.359"

2.484"

2.609"

2.734"

2.850"

2.975"

2.984"

3.109"

3.359"

3.734"

4.484"
Clear
ID (Fractional)
1/8"

5/32"

3/16"

7/32"

1/4"

5/16"

3/8"

7/16"

1/2"

9/16"

5/8"

11/16"

3/4"

13/16"

7/8"

15/16"

1"

1-1/16"

1-1/8"

1-5/16"

1-3/8"

1-7/16"

1-1/2"

1-5/8"

1-3/4"

1-13/16"

1-7/8"

1-15/16"

2"

2-1/16"

2-1/8"

2-3/16"

2-3/8"

2-1/2"

2-5/8"

2-3/4"

2-7/8"

3"

3-1/8"

3-3/8"

3-3/4"

4-1/2"
Clear
OD (Actual)
0.254"

0.285"

0.316"

0.348"

0.379"

0.441"

0.504"

0.566"

0.568"

0.629"

0.630"

0.691"

0.693"

0.754"

0.755"

0.808"

0.818"

0.880"

0.941"

0.943"

1.004"

1.005"

1.012"

1.066"

1.074"

1.130"

1.137"

1.254"

1.262"

1.324"

1.387"

1.441"

1.504"

1.568"

1.574"

1.629"

1.637"

1.693"

1.699"

1.762"

1.887"

1.895"

1.943"

2.004"

2.005"

2.020"

2.068"

2.131"

2.137"

2.193"

2.256"

2.318"

2.381"

2.387"

2.637"

2.762"

2.887"

3.012"

3.262"

3.270"

3.387"

3.395"

3.637"

4.012"

4.762"
Clear
OD (Fractional)
1/4"

9/32"

5/16"

11/32"

3/8"

7/16"

1/2"

9/16"

5/8"

11/16"

3/4"

13/16"

7/8"

15/16"

1"

1-1/16"

1-1/8"

1-1/4"

1-5/16"

1-3/8"

1-7/16"

1-1/2"

1-9/16"

1-5/8"

1-11/16"

1-3/4"

1-7/8"

1-15/16"

2"

2-1/16"

2-1/8"

2-3/16"

2-1/4"

2-5/16"

2-3/8"

2-5/8"

2-3/4"

2-7/8"

3"

3-1/4"

3-3/8"

3-5/8"

4"

4-3/4"
Clear
I.D. d(Ø)
1/8"

5/32"

3/16"

7/32"

1/4"

5/16"

3/8"

7/16"

1/2"

9/16"

5/8"

11/16"

3/4"

13/16"

7/8"

15/16"

1"

1-1/16"

1-1/8"

1-5/16"

1-3/8"

1-7/16"

1-1/2"

1-5/8"

1-3/4"

1-13/16"

1-7/8"

1-15/16"

2"

2-1/16"

2-1/8"

2-3/16"

2-3/8"

2-1/2"

2-5/8"

2-3/4"

2-7/8"

3"

3-1/8"

3-3/8"

3-3/4"

4-1/2"
Clear

Days to Ship

All

13 Days or Less

51 Days or Less

81 Days or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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Oil-Resistant Square Profile Buna-N O-Rings【5-100 Pieces Per Package】

Basic Information

Configure

Specification/Dimensions

Dash Size

Cross Section (Actual)

Cross Section (Fractional)

ID (Actual)

ID (Fractional)

OD (Actual)

OD (Fractional)

I.D. d(Ø)