568 HNBR70

Seal Information (568 HNBR70)
MATERIAL :HYDROGENATED NITRILE (HNBR)
TEMPERATURE RANGE :-25°F (-32°C) TO +302°F (150°C) Depending on compound
PRESSURE RANGE :Varies based on Diametrical Clearance (See Chart)
PART NUMBER :(568) – (Dash No.) (HNBR 70)
Chemical Compatibility : – Petroleum-based oils and fuels
– Ethylene glycol
– Aliphatic hydrocarbons
– Vegetable oils, animal fats & oils
– Silicone oils and greases ethylene glycol
– Water and steam
– Diluted acids, bases, and salt solutions
Hydrogenated Nitrile, also known as HNBR, Highly Saturated Nitrile (HSN), is made of a synthetic polymer that is obtained by saturating the double bonds in nitrile butadiene segments with hydrogen. This special hydrogenation process reduces many double bonds in main chains of NBR polymers. Hydrogenated Nitrile was specifically developed for increased temperature resistance and better compatibility with new automotive fuels. Hydrogenated Nitrile also offers higher strength and minimal degradation at high temperatures. Specific physical and chemical resistances vary by compound formulation.

HNBR orings are usually peroxide-cured but can also be sulfur-cured to improve flexible properties in dynamic systems. However, sulfur-curing will reduce the heat resistance and cause an inferior compression set.
A Nom ID
0.031″
132
0.046″
364
0.062″
116
0.078″
564
0.093″
332
0.125″
18
0.156″
532
0.187″
316
0.218″
732
0.25″
14
0.312″
516
0.375″
38
0.437″
716
0.5″
12
0.562″
916
0.625″
58
0.687″
1116
0.75″
34
0.812″
1316
0.875″
78
0.937″
1516
1″
1.062″
1116
1.125″
118
1.187″
1316
1.25″
114
1.312″
1516
1.375″
138
1.437″
1716
1.5″
112
1.562″
1916
1.625″
158
1.687″
11116
1.75″
134
1.812″
11316
1.875″
178
1.937″
11516
2″
2.062″
2116
2.125″
218
2.187″
2316
2.25″
214
2.312″
2516
2.375″
238
2.437″
2716
2.5″
212
2.625″
258
2.687″
21116
2.75″
234
2.812″
21316
2.875″
278
3″
3.125″
318
3.25″
314
3.375″
338
3.5″
312
3.625″
358
3.75″
334
3.875″
378
4″
4.125″
418
4.25″
414
4.375″
438
4.5″
412
4.625″
458
4.75″
434
4.875″
478
5″
5.125″
518
5.25″
514
5.375″
538
5.5″
512
5.625″
558
5.75″
534
5.875″
578
6″
6.25″
614
6.5″
612
6.75″
634
7″
7.25″
714
7.5″
712
7.75″
734
8″
8.25″
814
8.5″
812
8.75″
834
9″
9.25″
914
9.5″
912
9.75″
934
10″
10 
10.5″
1012
11″
11 
11.5″
1112
12″
12 
12.5″
1212
13″
13 
13.5″
1312
14″
14 
14.5″
1412
15″
15 
15.5″
1512
16″
16 
16.5″
1612
17″
17 
17.5″
1712
18″
18 
18.5″
1812
19″
19 
19.5″
1912
20″
20 
21″
21 
22″
22 
23″
23 
24″
24 
25″
25 
26″
26 
NAN″
NAN 
B Nom OD
0.093″
332
0.140″
964
0.187″
316
0.203″
1364
0.218″
732
0.25″
14
0.281″
932
0.312″
516
0.343″
1132
0.375″
38
0.406″
1332
0.437″
716
0.5″
12
0.562″
916
0.625″
58
0.687″
1116
0.75″
34
0.812″
1316
0.875″
78
0.937″
1516
1″
1.062″
1116
1.125″
118
1.187″
1316
1.25″
114
1.312″
1516
1.375″
138
1.437″
1716
1.5″
112
1.562″
1916
1.625″
158
1.687″
11116
1.75″
134
1.812″
11316
1.875″
178
1.937″
11516
2″
2.062″
2116
2.125″
218
2.187″
2316
2.25″
214
2.312″
2516
2.375″
238
2.437″
2716
2.5″
212
2.562″
2916
2.625″
258
2.687″
21116
2.75″
234
2.812″
21316
2.875″
278
2.937″
21516
3″
3.062″
3116
3.125″
318
3.187″
3316
3.25″
314
3.375″
338
3.437″
3716
3.5″
312
3.625″
358
3.687″
31116
3.75″
334
3.875″
378
3.937″
31516
4″
4.125″
418
4.187″
4316
4.25″
414
4.375″
438
4.437″
4716
4.5″
412
4.625″
458
4.687″
41116
4.75″
434
4.875″
478
4.937″
41516
5″
5.125″
518
5.187″
5316
5.25″
514
5.375″
538
5.437″
5716
5.5″
512
5.625″
558
5.687″
51116
5.75″
534
5.875″
578
5.937″
51516
6″
6.125″
618
6.187″
6316
6.25″
614
6.375″
638
6.437″
6716
6.5″
612
6.625″
658
6.687″
61116
6.75″
634
6.875″
678
6.937″
61516
7″
7.125″
718
7.187″
7316
7.25″
714
7.375″
738
7.437″
7716
7.5″
712
7.625″
758
7.687″
71116
7.75″
734
7.875″
778
7.937″
71516
8″
8.125″
818
8.187″
8316
8.25″
814
8.375″
838
8.437″
8716
8.5″
812
8.625″
858
8.687″
81116
8.75″
834
8.875″
878
8.937″
81516
9″
9.125″
918
9.187″
9316
9.25″
914
9.375″
938
9.437″
9716
9.5″
912
9.625″
958
9.687″
91116
9.75″
934
9.875″
978
9.937″
91516
10″
10 
10.12″
10.12 
10.25″
1014
10.37″
1038
10.5″
1012
10.75″
1034
10.87″
1078
11″
11 
11.25″
1114
11.37″
1138
11.5″
1112
11.75″
1134
11.87″
1178
12″
12 
12.25″
1214
12.37″
1238
12.5″
1212
13″
13 
13.25″
1314
13.37″
1338
13.5″
1312
14″
14 
14.25″
1414
14.37″
1438
14.5″
1412
15″
15 
15.25″
1514
15.37″
1538
15.5″
1512
16″
16 
16.25″
1614
16.37″
1638
16.5″
1612
17″
17 
17.25″
1714
17.37″
1738
17.5″
1712
18″
18 
18.25″
1814
18.37″
1838
18.5″
1812
19″
19 
19.37″
1938
19.5″
1912
20″
20 
20.37″
2038
20.5″
2012
21.37″
2138
21.5″
2112
22.37″
2238
22.5″
2212
23.37″
2338
23.5″
2312
24.37″
2438
24.5″
2412
25.37″
2538
25.5″
2512
26.37″
2638
26.5″
2612
C Nom Hgt
0.031″
132
0.046″
364
0.062″
116
0.093″
332
0.125″
18
0.187″
316
0.25″
14
Clear Filters
ProductCross SectionA Nom IDB Nom ODC Nom HgtAvailability
568-001 HNBR70 132
0.040
132
0.031″
332
0.093″
0.040″
132
*1-3 Days
568-002 HNBR70 364
0.050
364
0.046″
964
0.140″
0.050″
364
*1-3 Days
568-003 HNBR70 116
0.060
116
0.062″
316
0.187″
0.060″
116
*1-3 Days
568-004 HNBR70 116
0.070
564
0.078″
1364
0.203″
0.070″
116
*1-3 Days
568-005 HNBR70 116
0.070
332
0.093″
732
0.218″
0.070″
116
*1-3 Days
568-006 HNBR70 116
0.070
18
0.125″
14
0.25″
0.070″
116
*1-3 Days
568-007 HNBR70 116
0.070
532
0.156″
932
0.281″
0.070″
116
*1-3 Days
568-008 HNBR70 116
0.070
316
0.187″
516
0.312″
0.070″
116
*1-3 Days
568-009 HNBR70 116
0.070
732
0.218″
1132
0.343″
0.070″
116
*1-3 Days
568-010 HNBR70 116
0.070
14
0.25″
38
0.375″
0.070″
116
*1-3 Days
* This is an estimated delivery time, all delivery times may vary depending on factory lead times. A confirming sales order will be sent to you with updated delivery information when necessary.
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