- NKD-A 6/4,88 - Discontinued items - no longer available
- NKE 10/2,93
- NKE 10/5,10
- NKE 100/0,29
- NKE 125/0,23 - Discontinued types - not for new designs
- NKE 16/1,83
- NKE 16/3,19
- NKE 2/14,65 - Discontinued types - not for new designs
- NKE 2/25,50
- NKE 20/1,47
