ISI, Rod Seal Dedicated Packing

Brand :

NOK

Caution

Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
There are not the replacement items and the plan to resumption of sale. Please check the quotation and order screen for details.

Product Description

· Designed with a small cross-section to allow integrated groove mounting.
▪ This packing is a smaller cross-section version of the IDI type.
▪ U641 with excellent heat resistance is also available.

Dimension

Special Packing for Rod Seals
R = 0.3 or below, R₁ = 0.5 or below, R₂ = 1
The surface of the rod should be finished by buffing (SPBF) to 0.8 to 1.6 μmRz (0.2 to 0.4 μmRz).
•The roughness is JIS B 2601 : 2001. When regulation length cannot be kept, apply Pt.

How to Determine B dimension
■ When using backup ring. Please determine B dimension according to the table below.

Maximum Service Pressure	14MPa	21MPa	35MPa
Material of Backup ring	19YF
B dimension	B ≦ ø D + 1.0	B ≦ ø D + 0.5	B ≦ ø D + 0.2

Maximum Service Pressure	35MPa	42MPa
Material of Backup ring	80NP
B dimension	B ≦ ø D + 0.8	B ≦ ø D + 0.4

■ When not using backup ring.
To determine B dimension, please refer to the graph in the right

for the maximum extrusion gap (one side) considering the eccentricity of operating condition of the rod.

Specification Table
ISI type Iron rubber (PUR)
Material : Standard : NOK U801 / Heat Resistant type : NOK U641

Nominal size of Packing, and Housing dimensions						Packing Part Number		Combination Backup Ring Part Number
d	D	h	HA	HB	C	Standard (U801)	Heat Resistance (U641)	BRT2 (Bias-cut) 19YF	BRN2 (Bias-cut) 80NP
18	26	5	5.7	7.7	2	FU0180K0	FU0180K2	GN4778V0	GN9106O0
20	28	5	5.7	7.7	2	FU0212K0	FU0212K1	GN4780V0	GN9108O0
22.4	30	5	5.7	7.7	2	FU0260K0	FU0260K1	GN4784V0	GN9112O0
22.4	30.4	5	5.7	7.7	2	FU0261K0	FU0261K1	GN5714V0	GN9785O0
23.5	31.5	5	5.7	7.7	2	FU0267K0	FU0267K1	GN4786V0	GN9114O0
25	33	5	5.7	7.7	2.5	FU0276K0	FU0276K2	GN5019V1	GN9786O0
25	35	5	5.7	7.7	2.5	FU0278K0	FU0278K2	GN4787V0	GN9115O0
28	35.5	5	5.7	8.7	2.5	FU0320K0	FU0320K1	GN4791V0	GN9119O0
28	36	5	5.7	8.7	2.5	FU0321K0	FU0321K1	GN5715V0	GN9787O0
30	40	6	7	10	2.5	FU0357K0	FU0357K3	GN4794V0	GN9122O0
31.5	41.5	6	7	10	2.5	FU0382K0	FU0382K1	GN4796V0	GN9124O0
35	45	6	7	10	2.5	FU0424K0	FU0424K7	GN4799V0	GN9127O0
35.5	45	6	7	10	2.5	FU0451K0	FU0451K1	GN4801V0	GN9129O0
35.5	45.5	6	7	10	2.5	FU0452K0	FU0452K1	GN5716V0	GN9788O0
36	46	6	7	10	2.5	FU2921K1	FU2921K0	GN5733V0	GN3033O0
40	50	6	7	10	2.5	FU0497K0	FU0497K5	GN4050V0	GN9131O0
45	55	6	7	10	2.5	FU0567K0	FU0567K6	GN4804V0	GN9133O0
45	56	7	8	11	2.5	FU0572K0	FU0572K1	GN4805V0	GN9134O0
50	60	6	7	10	2.5	FU0619K0	FU0619K3	GN4335V0	GN9138O0
53	63	6	7	10	2.5	FU0679K0	FU0679K2	GN4693V0	GN9140O0
55	65	6	7	10	2.5	FU0694K0	FU0694K2	GN4810V0	GN9141O0
56	66	6	7	10	2.5	FU0722K0	FU0722K1	GN4766V0	GN9143O0
60	70	6	7	10	2.5	FU0746K0	FU0746K5	GN4676V0	GN9144O0
60	71	7	8	11	2.5	FU0750K0	FU0750K1	GN4812V0	GN9145O0
63	73	6	7	10	2.5	FU0786K0	FU0786K3	GN4814V0	GN9147O0
65	75	6	7	10	2.5	FU0809K0	FU0809K1	GN4816V0	GN9149O0
67	77	6	7	10	2.5	FU0828K0	FU0828K1	GN4697V0	GN9150O0
70	80	6	7	10	2.5	FU0849K0	FU0849K5	GN4651V0	GN9092O0
71	81	6	7	10	2.5	FU0880K0	FU0880K1	GN4819V0	GN9153O0
75	85	6	7	10	2.5	FU0901K0	FU0901K1	GN4692V0	GN9241O0
80	90	6	7	10	2.5	FU0939K0	FU0939K1	GN4820V0	GN9155O0
85	100	9	10	13	4	FU0984K0	FU0984K2	GN4687V0	GN9091O0
90	105	9	10	13	4	FU1024K0	FU1024K3	GN4698V0	GN9158O0
95	110	9	10	13	4	FU1051K0	FU1051K2	GN4822V0	GN9160O0
98	112	8.5	9.5	12.5	4	FU1067K0	FU1067K1	GN4824V0	GN9162O0
100	115	9	10	13	4	FU1082K0	FU1082K1	GN4512V0	GN9163O0
105	120	9	10	13	4	FU1125K0	FU1125K1	GN5198V0	GN9589O0
106	120	8.5	9.5	12.5	4	FU1135K0	FU1135K1	GN4826V0	GN9166O0
106	121	9	10	13	4	FU1136K0	FU1136K1	GN5717V0	GN9789O0
110	125	9	10	13	4	FU1157K0	FU1157K2	GN4480V0	GN9430O0
112	125	9	10	13	4	FU1179K0	FU1179K1	GN4827V0	GN9167O0
115	130	9	10	13	4	FU1195K1	FU1195K2	GN4593V0	GN9274O0
118	133	9	10	13	4	FU1205K0	FU1205K1	GN5718V0	GN9790O0
120	135	9	10	13	4	FU1220K0	FU1220K1	GN5036V0	GN9679O0
125	140	9	10	13	4	FU1252K0	FU1252K1	GN4481V0	GN9170O0
130	145	9	10	13	4	FU1280K0	FU1280K1	GN4628V1	GN9742O1
136	150	8.5	9.5	12.5	4	FU1306K0	FU1306K1	GN4830V0	GN9173O0
140	155	9	10	13	4	FU1323K0	FU1323K2	GN4526V0	GN9410O0
145	160	9	10	13	4	FU1343K0	FU1343K1	GN4551V0	GN9175O0
150	165	9	10	13	4	FU1359K0	FU1359K1	GN4833V0	GN9177O0
155	170	9	10	14	4	FU1388K0	FU1388K2	GN4834V0	GN9178O0
160	175	9	10	14	4	FU1406K0	FU1406K1	GN4835V0	GN9180O0
165	180	9	10	14	4	FU1429K0	FU1429K1	GN4836V0	GN9182O0
170	185	9	10	14	4	FU1443K0	FU1443K2	GN5464V0	GN9791O0
175	190	9	10	14	4	FU1459K0	FU1459K1	GN4839V0	GN9185O0
180	200	12	13	17	5	FU1483K0	FU1483K1	GN4470V0	GN9187O0
190	210	12	13	17	5	FU1516K0	FU1516K1	GN4841V0	GN9190O0
200	220	12	13	17	5	FU1543K0	FU1543K1	GN4385V0	GN9191O0
204	224	12	13	17	5	FU1563K0	FU1563K1	GN4842V0	GN9193O0
210	230	12	13	17	5	FU1575K0	FU1575K1	GN4627V0	GN9195O0
220	240	12	13	17	5	FU1596K0	FU1596K1	GN4444V0	GN9196O0
225	245	12	13	17	5	FU1621K0	FU1621K1	GN4844V0	GN9197O0
230	250	12	13	17	5	FU1637K0	FU1637K1	GN4635V0	GN9047O0
240	260	12	13	17	5	FU1657K0	FU1657K1	GN4845V0	GN9198O0
250	270	12	13	17	5	FU1678K0	FU1678K1	GN4459V0	GN9199O0
260	285	16	17	21	6.5	FU1704K0	FU1704K1	GN4847V0	GN9202O0
270	295	16	17	21	6.5	FU1720K0	FU1720K1	GN4850V0	GN9205O0
280	305	16	17	21	6.5	FU1733K0	FU1733K1	GN4410V0	GN9208O0
290	315	16	17	21	6.5	FU1748K0	FU1748K1	GN4854V0	GN9210O0
300	325	16	17	21	6.5	FU1762K0	FU1762K1	GN4855V0	GN9211O0