NMY Packings

Sakagami NMY-rod packings are slim U-packings designed as direct replacements for JIS B2401 P-line O-Rings. With a smaller cross section and superior wear resistance, NMY provides significantly more stable sealing performance. An ideal upgrade for enhanced durability and leak prevention in compact hydraulic applications.

Dimension table

Technical drawing of a mechanical seal assembly with labeled components including bearing, wiper, back-up ring, and detailed groove dimensions.
Packings & Groove dimensions (Unit：mm） Part No.
NMY-Packings Standard back-up ring（PT101）
D H GA GB d1
(Reference)		 # Standard material（RN 906） Bias cut type Endless type
3 6 2.1 2.5 3.9 3.2 1.5 NMY-3 T2 P-3 T3 P-3
4 7 2.1 2.5 3.9 4.2 1.5 NMY-4 T2 P-4 T3 P-4
5 8 2.1 2.5 3.9 5.2 1.5 NMY-5 T2 P-5 T3 P-5
6 9 2.1 2.5 3.9 6.2 1.5 NMY-6 T2 P-6 T3 P-6
7 10 2.1 2.5 3.9 7.2 1.5 NMY-7 T2 P-7 T3 P-7
8 11 2.1 2.5 3.9 8.2 1.5 NMY-8 T2 P-8 T3 P-8
9 12 2.1 2.5 3.9 9.2 1.5 NMY-9 T2 P-9 T3 P-9
10 13 2.1 2.5 3.9 10.2 1.5 NMY-10 T2 P-10 T3 P-10
10 14 2.8 3.2 4.4 10.3 1.5 NMY-10A T2 P-10A T3 P-10A
12 16 2.8 3.2 4.4 12.3 1.5 NMY-12 T2 P-12 T3 P-12
14 18 2.8 3.2 4.4 14.3 1.5 NMY-14 T2 P-14 T3 P-14
15 19 2.8 3.2 4.4 15.3 1.5 NMY-15 T2 P-15 T3 P-15
16 20 2.8 3.2 4.4 16.3 1.5 NMY-16 T2 P-16 T3 P-16
18 22 2.8 3.2 4.4 18.3 1.5 NMY-18 T2 P-18 T3 P-18
20 24 2.8 3.2 4.4 20.3 1.5 NMY-20 T2 P-20 T3 P-20
25 31 4.2 4.7 6 25.3 3 NMY-25 T2 P-25 T3 P-25
30 36 4.2 4.7 6 30.3 3 NMY-30 T2 P-30 T3 P-30