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Oil-Resistant Soft Buna-N O-Rings【5-25 Pieces Per Package】 (ZUSAH50021)

Oil-Resistant Soft Buna-N O-Rings ZUSAH50021

USA Industrials

Soft durometer makes these easier to compress than standard Buna-N. This makes them an ideal seal at low pressures or when needing to conform to worn grooves. 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.

ZUSAH50021

Drawing/Specifications
Part Numbers

part number	material	inch/metric	dash size	cross section (fractional)	id (fractional)	od (fractional)	durometer	cross section shape	color	grade
zusah50004	buna-n	inch	004	1/16"	5/64"	13/64"	50a	round	black	standard
zusah50005	buna-n	inch	005	1/16"	3/32"	7/32"	50a	round	black	standard
zusah50006	buna-n	inch	006	1/16"	1/8"	1/4"	50a	round	black	standard
zusah50007	buna-n	inch	007	1/16"	5/32"	9/32"	50a	round	black	standard
zusah50008	buna-n	inch	008	1/16"	3/16"	5/16"	50a	round	black	standard
zusah50009	buna-n	inch	009	1/16"	7/32"	11/32"	50a	round	black	standard
zusah50010	buna-n	inch	010	1/16"	1/4"	3/8"	50a	round	black	standard
zusah50011	buna-n	inch	011	1/16"	5/16"	7/16"	50a	round	black	standard
zusah50012	buna-n	inch	012	1/16"	3/8"	1/2"	50a	round	black	standard
zusah50013	buna-n	inch	013	1/16"	7/16"	9/16"	50a	round	black	standard
zusah50014	buna-n	inch	014	1/16"	1/2"	5/8"	50a	round	black	standard
zusah50015	buna-n	inch	015	1/16"	9/16"	11/16"	50a	round	black	standard
zusah50016	buna-n	inch	016	1/16"	5/8"	3/4"	50a	round	black	standard
zusah50017	buna-n	inch	017	1/16"	11/16"	13/16"	50a	round	black	standard
zusah50018	buna-n	inch	018	1/16"	3/4"	7/8"	50a	round	black	standard
zusah50019	buna-n	inch	019	1/16"	13/16"	15/16"	50a	round	black	standard
zusah50020	buna-n	inch	020	1/16"	7/8"	1"	50a	round	black	standard
zusah50021	buna-n	inch	021	1/16"	15/16"	1-1/16"	50a	round	black	standard
zusah50024	buna-n	inch	024	1/16"	1-1/8"	1-1/4"	50a	round	black	standard
zusah50027	buna-n	inch	027	1/16"	1-5/16"	1-7/16"	50a	round	black	standard
zusah50028	buna-n	inch	028	1/16"	1-3/8"	1-1/2"	50a	round	black	standard
zusah50029	buna-n	inch	029	1/16"	1-1/2"	1-5/8"	50a	round	black	standard
zusah50030	buna-n	inch	030	1/16"	1-5/8"	1-3/4"	50a	round	black	standard
zusah50031	buna-n	inch	031	1/16"	1-3/4"	1-7/8"	50a	round	black	standard
zusah50032	buna-n	inch	032	1/16"	1-7/8"	2"	50a	round	black	standard
zusah50110	buna-n	inch	110	3/32"	3/8"	9/16"	50a	round	black	standard
zusah50111	buna-n	inch	111	3/32"	7/16"	5/8"	50a	round	black	standard
zusah50112	buna-n	inch	112	3/32"	1/2"	11/16"	50a	round	black	standard
zusah50113	buna-n	inch	113	3/32"	9/16"	3/4"	50a	round	black	standard
zusah50114	buna-n	inch	114	3/32"	5/8"	13/16"	50a	round	black	standard
zusah50115	buna-n	inch	115	3/32"	11/16"	7/8"	50a	round	black	standard
zusah50116	buna-n	inch	116	3/32"	3/4"	15/16"	50a	round	black	standard
zusah50117	buna-n	inch	117	3/32"	13/16"	1"	50a	round	black	standard
zusah50118	buna-n	inch	118	3/32"	7/8"	1-1/16"	50a	round	black	standard
zusah50119	buna-n	inch	119	3/32"	15/16"	1-1/8"	50a	round	black	standard
zusah50120	buna-n	inch	120	3/32"	1"	1-3/16"	50a	round	black	standard
zusah50121	buna-n	inch	121	3/32"	1-1/16"	1-1/4"	50a	round	black	standard
zusah50122	buna-n	inch	122	3/32"	1-1/8"	1-5/16"	50a	round	black	standard
zusah50126	buna-n	inch	126	3/32"	1-3/8"	1-9/16"	50a	round	black	standard
zusah50128	buna-n	inch	128	3/32"	1-1/2"	1-11/16"	50a	round	black	standard
zusah50130	buna-n	inch	130	3/32"	1-5/8"	1-13/16"	50a	round	black	standard
zusah50132	buna-n	inch	132	3/32"	1-3/4"	1-15/16"	50a	round	black	standard
zusah50133	buna-n	inch	133	3/32"	1-13/16"	2"	50a	round	black	standard
zusah50134	buna-n	inch	134	3/32"	1-7/8"	2-1/16"	50a	round	black	standard
zusah50135	buna-n	inch	135	3/32"	1-15/16"	2-1/8"	50a	round	black	standard
zusah50136	buna-n	inch	136	3/32"	2"	2-3/16"	50a	round	black	standard
zusah50137	buna-n	inch	137	3/32"	2-1/16"	2-1/4"	50a	round	black	standard
zusah50138	buna-n	inch	138	3/32"	2-1/8"	2-5/16"	50a	round	black	standard
zusah50139	buna-n	inch	139	3/32"	2-3/16"	2-3/8"	50a	round	black	standard
zusah50140	buna-n	inch	140	3/32"	2-1/4"	2-7/16"	50a	round	black	standard
zusah50141	buna-n	inch	141	3/32"	2-5/16"	2-1/2"	50a	round	black	standard
zusah50146	buna-n	inch	146	3/32"	2-5/8"	2-13/16"	50a	round	black	standard
zusah50148	buna-n	inch	148	3/32"	2-3/4"	2-15/16"	50a	round	black	standard
zusah50151	buna-n	inch	151	3/32"	3"	3-3/16"	50a	round	black	standard
zusah50152	buna-n	inch	152	3/32"	3-1/4"	3-7/16"	50a	round	black	standard
zusah50210	buna-n	inch	210	1/8"	3/4"	1"	50a	round	black	standard
zusah50211	buna-n	inch	211	1/8"	13/16"	1-1/16"	50a	round	black	standard
zusah50212	buna-n	inch	212	1/8"	7/8"	1-1/8"	50a	round	black	standard
zusah50213	buna-n	inch	213	1/8"	15/16"	1-3/16"	50a	round	black	standard
zusah50214	buna-n	inch	214	1/8"	1"	1-1/4"	50a	round	black	standard
zusah50215	buna-n	inch	215	1/8"	1-1/16"	1-5/16"	50a	round	black	standard
zusah50216	buna-n	inch	216	1/8"	1-1/8"	1-3/8"	50a	round	black	standard
zusah50217	buna-n	inch	217	1/8"	1-3/16"	1-7/16"	50a	round	black	standard
zusah50218	buna-n	inch	218	1/8"	1-1/4"	1-1/2"	50a	round	black	standard
zusah50219	buna-n	inch	219	1/8"	1-5/16"	1-9/16"	50a	round	black	standard
zusah50220	buna-n	inch	220	1/8"	1-3/8"	1-5/8"	50a	round	black	standard
zusah50221	buna-n	inch	221	1/8"	1-7/16"	1-11/16"	50a	round	black	standard
zusah50222	buna-n	inch	222	1/8"	1-1/2"	1-3/4"	50a	round	black	standard
zusah50223	buna-n	inch	223	1/8"	1-5/8"	1-7/8"	50a	round	black	standard
zusah50224	buna-n	inch	224	1/8"	1-3/4"	2"	50a	round	black	standard
zusah50225	buna-n	inch	225	1/8"	1-7/8"	2-1/8"	50a	round	black	standard
zusah50226	buna-n	inch	226	1/8"	2"	2-1/4"	50a	round	black	standard
zusah50227	buna-n	inch	227	1/8"	2-1/8"	2-3/8"	50a	round	black	standard
zusah50228	buna-n	inch	228	1/8"	2-1/4"	2-1/2"	50a	round	black	standard
zusah50229	buna-n	inch	229	1/8"	2-3/8"	2-5/8"	50a	round	black	standard
zusah50230	buna-n	inch	230	1/8"	2-1/2"	2-3/4"	50a	round	black	standard
zusah50231	buna-n	inch	231	1/8"	2-5/8"	2-7/8"	50a	round	black	standard
zusah50232	buna-n	inch	232	1/8"	2-3/4"	3"	50a	round	black	standard
zusah50233	buna-n	inch	233	1/8"	2-7/8"	3-1/8"	50a	round	black	standard
zusah50234	buna-n	inch	234	1/8"	3"	3-1/4"	50a	round	black	standard
zusah50235	buna-n	inch	235	1/8"	3-1/8"	3-3/8"	50a	round	black	standard
zusah50236	buna-n	inch	236	1/8"	3-1/4"	3-1/2"	50a	round	black	standard
zusah50237	buna-n	inch	237	1/8"	3-3/8"	3-5/8"	50a	round	black	standard
zusah50240	buna-n	inch	240	1/8"	3-3/4"	4"	50a	round	black	standard
zusah50241	buna-n	inch	241	1/8"	3-7/8"	4-1/8"	50a	round	black	standard
zusah50246	buna-n	inch	246	1/8"	4-1/2"	4-3/4"	50a	round	black	standard
zusah50325	buna-n	inch	325	3/16"	1-1/2"	1-7/8"	50a	round	black	standard
zusah50326	buna-n	inch	326	3/16"	1-5/8"	2"	50a	round	black	standard
zusah50327	buna-n	inch	327	3/16"	1-3/4"	2-1/8"	50a	round	black	standard
zusah50328	buna-n	inch	328	3/16"	1-7/8"	2-1/4"	50a	round	black	standard
zusah50329	buna-n	inch	329	3/16"	2"	2-3/8"	50a	round	black	standard
zusah50330	buna-n	inch	330	3/16"	2-1/8"	2-1/2"	50a	round	black	standard
zusah50331	buna-n	inch	331	3/16"	2-1/4"	2-5/8"	50a	round	black	standard
zusah50332	buna-n	inch	332	3/16"	2-3/8"	2-3/4"	50a	round	black	standard
zusah50333	buna-n	inch	333	3/16"	2-1/2"	2-7/8"	50a	round	black	standard
zusah50334	buna-n	inch	334	3/16"	2-5/8"	3"	50a	round	black	standard
zusah50335	buna-n	inch	335	3/16"	2-3/4"	3-1/8"	50a	round	black	standard
zusah50336	buna-n	inch	336	3/16"	2-7/8"	3-1/4"	50a	round	black	standard
zusah50337	buna-n	inch	337	3/16"	3"	3-3/8"	50a	round	black	standard

: 30; 45; 60

Part Number
ZUSAH50021

Part Number	Number of pc(s). included in pkg.	Minimum order quantity	Volume Discount	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)		Quote	1-1/16"	15/16"	021	0.070"	1/16"	0.926"	15/16"	1.066"	1-1/16"

Basic Information

Material	Buna-N Food Grade	Environment, Applications	Mineral Oil Resistant / Water Resistant	Material	Buna-N
Durometer	50A	Hardness	Soft	Cross Section Shape	Round
Color	Black	Grade	Standard	Temperature Range	-40° to 250° F

Please check the type/dimensions/specifications of the part ZUSAH50021 in the Oil-Resistant Soft Buna-N O-Rings series.

Configure

1 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

I.D. d(Ø)
5/64"

3/32"

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"

1-3/16"

1-1/4"

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"

2-1/4"

2-5/16"

2-3/8"

2-1/2"

2-5/8"

2-3/4"

2-7/8"

3"

3-1/8"

3-1/4"

3-3/8"

3-3/4"

3-7/8"

4-1/2"
Clear
Dash Size
004

005

006

007

008

009

010

011

012

013

014

015

016

017

018

019

020

021

024

027

028

029

030

031

032

110

111

112

113

114

115

116

117

118

119

120

121

122

126

128

130

132

133

134

135

136

137

138

139

140

141

146

148

151

152

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

240

241

246

325

326

327

328

329

330

331

332

333

334

335

336

337
Clear
Cross Section (Actual)
0.070"

0.103"

0.139"

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

3/32"

1/8"

3/16"
Clear
ID (Actual)
0.07"

0.101"

0.114"

0.145"

0.176"

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"

0.739"

0.796"

0.799"

0.801"

0.859"

0.862"

0.864"

0.921"

0.924"

0.926"

0.984"

0.987"

1.046"

1.049"

1.109"

1.112"

1.114"

1.171"

1.234"

1.296"

1.301"

1.359"

1.362"

1.364"

1.421"

1.475"

1.484"

1.487"

1.489"

1.6"

1.609"

1.612"

1.614"

1.725"

1.734"

1.737"

1.739"

1.799"

1.85"

1.859"

1.862"

1.864"

1.925"

1.975"

1.984"

1.987"

2.05"

2.1"

2.109"

2.112"

2.175"

2.225"

2.234"

2.237"

2.3"

2.35"

2.359"

2.475"

2.484"

2.6"

2.609"

2.612"

2.725"

2.734"

2.737"

2.85"

2.859"

2.975"

2.984"

2.987"

3.109"

3.234"

3.237"

3.359"

3.734"

3.859"

4.484"
Clear
ID (Fractional)
5/64"

3/32"

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"

1-3/16"

1-1/4"

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"

2-1/4"

2-5/16"

2-3/8"

2-1/2"

2-5/8"

2-3/4"

2-7/8"

3"

3-1/8"

3-1/4"

3-3/8"

3-3/4"

3-7/8"

4-1/2"
Clear
OD (Actual)
0.21"

0.241"

0.254"

0.285"

0.316"

0.348"

0.379"

0.441"

0.504"

0.566"

0.568"

0.629"

0.63"

0.691"

0.693"

0.754"

0.755"

0.816"

0.818"

0.879"

0.88"

0.941"

0.943"

1.004"

1.005"

1.012"

1.066"

1.068"

1.074"

1.13"

1.137"

1.193"

1.199"

1.254"

1.255"

1.262"

1.318"

1.324"

1.387"

1.441"

1.449"

1.504"

1.512"

1.568"

1.574"

1.629"

1.637"

1.693"

1.699"

1.754"

1.762"

1.818"

1.879"

1.887"

1.895"

1.943"

2.004"

2.005"

2.012"

2.02"

2.068"

2.131"

2.137"

2.145"

2.193"

2.256"

2.262"

2.27"

2.318"

2.381"

2.387"

2.395"

2.443"

2.506"

2.512"

2.52"

2.637"

2.645"

2.762"

2.77"

2.818"

2.887"

2.895"

2.943"

3.012"

3.02"

3.137"

3.145"

3.193"

3.262"

3.27"

3.387"

3.395"

3.443"

3.512"

3.637"

4.012"

4.137"

4.762"
Clear
OD (Fractional)
13/64"

7/32"

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"

1-3/16"

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"

1-13/16"

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"

2-7/16"

2-1/2"

2-5/8"

2-3/4"

2-13/16"

2-7/8"

2-15/16"

3"

3-1/8"

3-3/16"

3-1/4"

3-3/8"

3-7/16"

3-1/2"

3-5/8"

4"

4-1/8"

4-3/4"
Clear

Days to Ship

All

13 Days or Less

51 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 .

Products like this...

Part Number
ZUSAH50007
ZUSAH50008
ZUSAH50009
ZUSAH50024
ZUSAH50027
ZUSAH50028

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	9/32"	5/32"	007	0.070"	1/16"	0.145"	5/32"	0.285"	9/32"
25 Pieces Per Package	1 Pack(s)	Quote	5/16"	3/16"	008	0.070"	1/16"	0.176"	3/16"	0.316"	5/16"
25 Pieces Per Package	1 Pack(s)	51 Days	11/32"	7/32"	009	0.070"	1/16"	0.176"	7/32"	0.348"	11/32"
25 Pieces Per Package	1 Pack(s)	51 Days	1-1/4"	1-1/8"	024	0.070"	1/16"	1.114"	1-1/8"	1.254"	1-1/4"
25 Pieces Per Package	1 Pack(s)	51 Days	1-7/16"	1-5/16"	027	0.070"	1/16"	1.301"	1-5/16"	1.441"	1-7/16"
25 Pieces Per Package	1 Pack(s)	13 Days	1-1/2"	1-3/8"	028	0.070"	1/16"	1.364"	1-3/8"	1.504"	1-1/2"

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Oil-Resistant Soft Buna-N O-Rings【5-25 Pieces Per Package】 (ZUSAH50021)

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