RMF Systems CMS 2 - Page 83

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As a policy of continual improvement, RMF reserves the right to alter the specification without prior notice.
201.028 REV 1 Date of Issue: 18 June 2018
Other Standards
Although the ISO 4406:1999 standard is being used extensively within the hydraulics industry other standards are
occasionally required and a comparison may be requested.
The following table gives a very general comparison but often no direct comparison is possible due to the
different classes and sizes involved.
ISO4409:1999
DEF.STD 05/42
Table A Table B
NAS 1638
ISO 11218
SAE 749
13/11/8
2
14/12/9
3
0
15/13/10
4
1
16/14/9
400F
16/14/11
5
2
17/15/9
400
17/15/10
800F
17/15/12
6
3
18/16/10
800
18/16/11
1300F
18/16/13
7
4
19/17/11
1300
2000F
19/17/14
8
5
20/18/12
2000
20/18/13
4400F
20/18/15
9
6
21/19/13
4400
6300F
21/19/16
10
22/20/13
6300
22/20/17
11
23/21/14
15000
23/21/18
12
24/22/15
21000
25/23/17
100000