Dash Number 105 O-Rings | McMaster-Carr

Clear All

	System of Measurement System of Measurement

Inch

	ID ID

0.143"

	OD OD

0.349"

	Cross Section Shape Cross Section Shape


Round	X

	Material Material

Viton® Fluoroelastomer
Rubber

	Dash Number Dash Number	Show

105

	Dash Number Dash Number	Hide

001
001-1/2
002
003
004
005
006
007
008
009
010
011
012
013
014
015
016
017
018
019
020
021
022
023
024
025
026
027
028
029
030
031
032
033
034
035
036
037
038
039
040
041
042
043
044
045
046
047
048
049
050
051
052
053
054
055
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
201
202
203
204
205
206
207
208
209
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
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
901
902
903
904
905
906
907
908
909
910
911
912
913
914
916
918
920
924
928
932

	Hardness Hardness

	Hardness Rating Hardness Rating


Soft	Medium

Hard

	Width Width

0.103"

	For Use With For Use With

	Color Color

	Black
	Red
	Brown

	Fractional ID Fractional ID

5/32

	Fractional Width Fractional Width

3/32

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

-99° to -50° F

-49° to 0° F

Greater than 0° F

	Specifications Met Specifications Met

	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

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

REACH Compliant

	Fractional OD Fractional OD

11/32

	Environment Environment

Food and Beverage

Clean Room

	O-Ring Grade O-Ring Grade

4079

	Environmental Rating Environmental Rating

Fed. Std. Class 10,000

ISO Class 7

Forward

How can we improve?

17 Products

About O-Rings

Made of Buna-N, these O-rings resist grease, hydraulic oil, and motor oil—plus mild chemicals and water. However, Buna-N is not for use with brake fluid. These O-rings are commonly used to create multidirectional seals between two parts in power transmission assemblies, hydraulic cylinders, and pneumatic cylinders. With a round profile, they resist compression and tearing to keep their shape over time, so they’re reusable. All have shelf life, cure date, and a traceable lot number printed on the bag. Many meet ASTM D2000 and SAE J200, international standards for rubber products.

Inch O-rings have a dash number and are sized to the SAE standard AS568.

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

Inch

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temperature Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 3/32 Fractional (0.103" Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 70A (Medium)	ASTM D2000, SAE AS568, SAE J200	-20° to 250°	Black	100	00000000	00000

Oil-Resistant Hard Buna-N O-Rings

Offering better wear resistance than standard Buna-N O-rings, these hard O-rings are also resilient and tear resistant. They resist grease, petroleum fluids, and motor oil. All have a round profile and are suitable for a wide range of static and dynamic sealing applications.

Inch O-rings have a dash number and are sized to the SAE standard AS568.

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

Inch

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temperature Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 3/32 Fractional (0.103" Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 90A (Hard)	ASTM D2000, SAE AS568, SAE J200	-30° to 250°	Black	100	00000000	00000

X-Profile Oil-Resistant Buna-N O-Rings

Also known as Quattro Seals and X-rings, these X-profile O-rings have four points of contact for a better seal in dynamic applications than round-profile O-rings. They also require less compression to make a seal, so they offer a longer service life. These O-rings are made of Buna-N, which is resilient and tear resistant. They resist motor oil. These O-rings are sized to the SAE standard AS568.

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

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temperature Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 3/32 Fractional (0.103" Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 70A (Medium)	ASTM D2000, SAE AS568, SAE J200	-30° to 225°	Black	100	000000000	00000

Oil- and Abrasion-Resistant Polyurethane O-Rings

More abrasion resistant than Buna-N O-rings, these polyurethane O-rings resist mineral oil, motor oil, and ethylene glycol. They have a round profile and are suitable for a wide range of static and dynamic sealing applications. All are sized to the SAE standard AS568.

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

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temperature Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 3/32 Fractional (0.103"Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 70A (Medium)	ASTM D2000, SAE AS568, SAE J200	-40° to 200°	Black	1	00000000	00000

Chemical-Resistant Viton® Fluoroelastomer O-Rings

These Viton® fluoroelastomer O-rings resist a wide range of chemicals, including benzene, butyl alcohol, and ethylene glycol. They have a round profile and are suitable for both static and dynamic sealing applications.

Inch O-rings have a dash number and are sized to the SAE standard AS568.

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

Inch

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temperature Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 3/32 Fractional (0.103" Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 75A (Medium)	ASTM D2000, SAE AS568, SAE J200	0° to 400°	Black	50	00000000	00000

Chemical-Resistant Hard Viton® Fluoroelastomer O-Rings

These hard O-rings offer better wear resistance than standard Viton® fluoroelastomer O-rings. They resist a wide range of chemicals, including benzene, butyl alcohol, and ethylene glycol. All have a round profile and are suitable for both static and dynamic sealing applications. These O-rings are sized to the SAE standard AS568.

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

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temperature Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 3/32 Fractional (0.103" Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 90A (Hard)	ASTM D2000, SAE AS568, SAE J200	-20° to 400°	Black	10	00000000	00000

X-Profile Chemical-Resistant Viton® Fluoroelastomer O-Rings

Also known as Quattro Seals and X-rings, these X-profile O-rings have four points of contact for a better seal in dynamic applications than round-profile O-rings. They also require less compression to make a seal, so they offer a longer service life. Made of Viton® fluoroelastomer, these O-rings resist a wide range of chemicals, including benzene, butyl alcohol, and ethylene glycol. All are sized to the SAE standard AS568.

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

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temperature Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 3/32 Fractional (0.103" Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 75A (Medium)	ASTM D2000, SAE AS568, SAE J200	-15° to 400°	Black	25	00000000	000000

Chemical-Resistant Super-Resilient Viton® Fluoroelastomer O-Rings

These durable Viton® fluoroelastomer O-rings bounce back to shape after repeated compression better than other types of Viton® fluoroelastomer O-rings. They resist a wide range of chemicals, including benzene, butyl alcohol, and ethylene glycol. These O-rings have a round profile and are suitable for both static and dynamic sealing applications. They have shelf life, cure date, and traceable lot number printed on the bag.

Inch O-rings are sized to the SAE standard AS568.

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

Inch

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temperature Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 3/32 Fractional (0.103" Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 75A (Medium)	ASTM D2000, SAE AS568, SAE J200	-15° to 400°	Black	5	00000000	00000

Chemical-Resistant Brown Viton® Fluoroelastomer O-Rings

Because one black O-ring looks just like another, these Viton® fluoroelastomer O-rings are brown for easy identification. They resist a wide range of chemicals, including benzene, butyl alcohol, and ethylene glycol. All have a round profile and are suitable for both static and dynamic sealing applications. O-rings have shelf life, cure date, and traceable lot number printed on the bag.

Inch O-rings have a dash number and are sized to the SAE standard AS568.

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

Inch

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temperature Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 3/32 Fractional (0.103" Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 75A (Medium)	ASTM D2000, SAE AS568, SAE J200	-15° to 400°	Brown	50	0000000	000000

Chemical-Resistant Mil. Spec. Viton® Fluoroelastomer O-Rings

Made of Viton® fluoroelastomer, these O-rings meet MIL-R-83248. They resist chemicals such as benzene, butyl alcohol, and ethylene glycol. All have a round profile and are suitable for a wide range of static and dynamic sealing applications. These O-rings are sized to the SAE standard AS568.

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

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temperature Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 3/32 Fractional (0.103" Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 75A (Medium)	ASTM D2000, MIL-R-83248, SAE AS568, SAE J200	0° to 400°	Black	50	00000000	000000

Chemical-Resistant Clean Room Viton® Fluoroelastomer O-Rings

Made and bagged in an ISO Class 7 and Fed. Spec. Class 10,000 clean room. These O-rings are made of Viton® fluoroelastomer, which resists chemicals such as benzene, butyl alcohol, and ethylene glycol. They have a round profile and are suitable for a wide range of static and dynamic sealing applications. All are sized to the SAE standard AS568.

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

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Environmental Rating	Specifications Met	Temperature Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 3/32 Fractional (0.103" Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 70A (Medium)	Fed. Std. Class 10,000; ISO Class 7	ASTM D2000, FDA Compliant 21 CFR 177.2600, SAE AS568, SAE J200, USP VI Certified	-15° to 400°	Black	25	00000000	000000

Ultra-Chemical-Resistant Kalrez 4079 O-Rings

Inherently softer and more compressible than PTFE O-rings, these Kalrez 4079 O-rings have comparable chemical resistance. Use them with acetone, methyl ethyl ketone (MEK), potassium hydroxide, and most acids. They have a round profile and are suitable for a wide range of static and dynamic sealing applications.

Inch O-rings have a dash number and are sized to the SAE standard AS568.

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

Inch

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temperature Range, °F	Color		Each
Wd.: 3/32 Fractional (0.103" Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 75A (Medium)	ASTM D2000, SAE AS568, SAE J200	30° to 600°	Black	00000000	000000

High-Temperature Silicone O-Rings

These silicone O-rings withstand temperatures up to 400° F or 450° F. They have a round profile and are suitable for a wide range of static and dynamic sealing applications. All have a cure date and a traceable lot number printed on the bag.

Inch O-rings have a dash number. USP VI Certified, they meet testing requirements for material quality.

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

Inch

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temperature Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 3/32 Fractional (0.103" Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 70A (Medium)	ASTM D2000, FDA Compliant 21 CFR 177.2600, SAE AS568, SAE J200, USP VI Certified	-60° to 400°	Red	50	00000000	000000

High-Temperature Soft Silicone O-Rings

Able to withstand temperatures up to 400° F, these silicone O-rings are softer than standard silicone O-rings for a better seal in low-pressure applications. They have a round profile and are suitable for a wide range of static and dynamic sealing applications. All are sized to the SAE standard AS568.

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

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temperature Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 3/32 Fractional (0.103" Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 50A (Soft)	ASTM D2000, SAE AS568	-60° to 400°	Red	10	00000000	00000

Water- and Steam-Resistant EPDM O-Rings

These EPDM O-rings resist water, steam, ethanol, and ethylene glycol. They have a round profile and are suitable for a wide range of static and dynamic sealing applications. All are sized to the SAE standard AS568.

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

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temperature Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 3/32 Fractional (0.103" Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 70A (Medium)	ASTM D2000, SAE AS568, SAE J200	-70° to 250°	Black	100	00000000	000000

Water- and Steam-Resistant High-Temperature EPDM O-Rings

These O-rings withstand higher temperatures than standard EPDM O-rings. They resist water, steam, ethanol, and ethylene glycol. All have a round profile and are suitable for a wide range of static and dynamic sealing applications. These O-rings have shelf life, cure date, and traceable lot number printed on the bag.

Inch O-rings have a dash number and are sized to the SAE standard AS568.

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

Inch

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temperature Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 3/32 Fractional (0.103" Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 70A (Medium)	ASTM D2000	-70° to 300°	Black	100	00000000	00000

Water-Resistant Neoprene O-Rings

In addition to water, these neoprene O-rings resist ammonia, ethylene glycol, and isopropyl alcohol. They have a round profile and are suitable for a wide range of static and dynamic sealing applications. All are sized to the SAE standard AS568.

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

	Fractional		Actual
Dash Number	ID	OD	ID	OD	Hardness	Specifications Met	Temperature Range, °F	Color	Pkg. Qty.		Pkg.
Wd.: 3/32 Fractional (0.103" Actual)
105	5/32	11/32	0.143"	0.349"	Durometer 70A (Medium)	ASTM D2000, SAE AS568, SAE J200	-10° to 170°	Black	100	000000000	000000