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Rod Style - Imperial
    



Standard Lip (STD)


Double Lip (DL)


Suffix:
STD
-
Standard
DL
-
Double Lip






Urethane U-cups fit into standard deep loaded U-cup glands. For groove dimensions please reference to the loaded U-cup section.

Part Number
Material Dimensions
C/S
I.D.
Height
RO 12500375187DL
1/8
3/8
3/16
RO 12500500187STD
1/8
1/2
3/16
RO 12500625187DL
1/8
5/8
3/16
RO 12500625250STD
1/8
5/8
1/4
RO 12500750187DL
1/8
3/4
3/16
RO 12500750250STD
1/8
3/4
1/4
RO 12501000187DL
1/8
1
3/16
RO 12501000250STD
1/8
1
1/4
RO 12501000250DL
1/8
1
1/4
RO 12501062187DL
1/8
1 - 1/16
3/16
RO 12501062250DL
1/8
1 - 1/16
1/4
RO 12501125187DL
1/8
1 - 1/8
3/16
RO 12501125250DL
1/8
1 - 1/8
1/4
RO 12501250187DL
1/8
1 - 1/4
3/16
RO 12501375250DL
1/8
1 - 3/8
1/4
RO 12501500250DL
1/8
1 - 1/2
1/4
RO 12501625250DL
1/8
1 - 5/8
1/4
RO 12501750250DL
1/8
1 - 3/4
1/4
RO 15601500312DL
5/32
1 - 1/2
5/16
RO 18700500312DL
3/16
1/2
5/16
RO 18700625250STD
3/16
5/8
1/4
RO 18700625375DL
3/16
5/8
3/8
RO 18700750312DL
3/16
3/4
5/16
RO 18700875312DL
3/16
7/8
5/16
RO 18701125312STD
3/16
1 - 1/8
5/16
RO 18701125312DL
3/16
1 - 1/8
5/16
RO 18701250250STD
3/16
1 - 1/4
1/4
RO 18701250250DL
3/16
1 - 1/4
1/4
RO 18701250312STD
3/16
1 - 1/4
5/16
RO 18701250375DL
3/16
1 - 1/4
3/8
RO 18701375312DL
3/16
1 - 3/8
5/16
RO 18701500250DL
3/16
1 - 1/2
1/4
RO 18701500250DL
3/16
1 - 1/2
1/4
RO 18701500312STD
3/16
1 - 1/2
5/16
RO 18701500312DL
3/16
1 - 1/2
5/16
RO 18701500375DL
3/16
1 - 1/2
3/8
RO 18701750250DL
3/16
1 - 3/4
1/4
RO 18701750312DL
3/16
1 - 3/4
5/16
RO 18701750375STD
3/16
1 - 3/4
3/8
RO 18701750375DL
3/16
1 - 3/4
3/8
RO 18701875375DL
3/16
1 - 7/8
3/8
RO 18702000187DL
3/16
2
3/16
RO 18702000312STD
3/16
2
5/16
RO 18702000375DL
3/16
2
3/8
RO 18702125375DL
3/16
2 - 1/8
3/8
RO 18702250312STD
3/16
2 - 1/4
5/16
RO 18702250312DL
3/16
2 - 1/4
5/16
RO 18702500312STD
3/16
2 - 1/2
5/16
RO 18702500375DL
3/16
2 - 1/2
3/8
Part Number
Material Dimensions
C/S
I.D.
Height
RO 18703000375DL
3/16
3
3/8
RO 18703500375DL
3/16
3 - 1/2
3/8
RO 18704000375DL
3/16
4
3/8
RO 18704500375DL
3/16
4 - 1/2
3/8
RO 18705000375DL
3/16
5
3/8
RO 25001000250STD
1/4
1
1/4
RO 25001125375STD
1/4
1 - 1/8
3/8
RO 25001125375DL
1/4
1 - 1/8
3/8
RO 25001375375DL
1/4
1 - 3/8
3/8
RO 25001500312STD
1/4
1 - 1/2
5/16
RO 25001500375DL
1/4
1 - 1/2
3/8
RO 25001750375STD
1/4
1 - 3/4
3/8
RO 25001750375DL
1/4
1 - 3/4
3/8
RO 25001875375DL
1/4
1 - 7/8
3/8
RO 25002000375STD
1/4
2
3/8
RO 25002000375DL
1/4
2
3/8
RO 25002250375DL
1/4
2 - 1/4
3/8
RO 25002500375STD
1/4
2 - 1/2
3/8
RO 25002500375DL
1/4
2 - 1/2
3/8
RO 25002625375DL
1/4
2 - 5/8
3/8
RO 25002625500DL
1/4
2 - 5/8
1/2
RO 25002750375DL
1/4
2 - 3/4
3/8
RO 25003000375STD
1/4
3
3/8
RO 25003500375STD
1/4
3 - 1/2
3/8
RO 25004000562DL
1/4
4
9/16
RO 25004500375DL
1/4
4 - 1/2
3/8
RO 25004500562STD
1/4
4 - 1/2
9/16
RO 25005500562STD
1/4
5 - 1/2
9/16
RO 31202000500DL
5/16
2
1/2
RO 31202375375STD
5/16
2 - 3/8
3/8
RO 31202500500DL
5/16
2 - 1/2
1/2
RO 31202625500DL
5/16
2 - 5/8
1/2
RO 31202750625DL
5/16
2 - 3/4
5/8
RO 31203000500DL
5/16
3
1/2
RO 31203375562DL
5/16
3 - 3/8
9/16
RO 31203500500DL
5/16
3 - 1/2
1/2
RO 31205250625DL
5/16
5 - 1/4
5/8
RO 31205750625STD
5/16
5 - 3/4
5/8
RO 37502000625DL
3/8
2
5/8
RO 37502500625DL
3/8
2 - 1/2
5/8
RO 37503000500STD
3/8
3
1/2
RO 37503000625DL
3/8
3
5/8
RO 37503500500DL
3/8
3 - 1/2
1/2
RO 37503500625STD
3/8
3 - 1/2
5/8
RO 37503500625DL
3/8
3 - 1/2
5/8
RO 37504000625DL
3/8
4
5/8
RO 37505000500DL
3/8
5
1/2
RO 37506750625DL
3/8
6 - 3/4
5/8


Symmetrical Style - Imperial









Part Number
Nominal Seal
C/S
I.D.
Height
SY 12500312250
1/8
5/16
1/4
SY 12500500187
1/8
1/2
3/16
SY 12500750250
1/8
3/4
1/4
SY 12500875250
1/8
7/8
1/4
SY 15601375250
5/32
1 - 3/8
1/4
SY 18700625312
3/16
5/8
5/16
SY 18700750312
3/16
3/4
5/16
SY 18700875312
3/16
7/8
5/16
SY 18701000250
3/16
1
1/4
SY 18701125312
3/16
1 - 1/8
5/16
SY 18701500312
3/16
1 - 1/2
5/16
SY 18702125375
3/16
2 - 1/8
3/8
SY 18705125312
3/16
5 - 1/8
5/16
SY 21800500250
7/32
1/2
1/4
SY 21802500375
7/32
2 - 1/2
3/8
SY 25000812375
1/4
13/16
3/8
SY 25000937375
1/4
15/16
3/8
SY 25001125375
1/4
1 - 1/8
3/8
SY 25001250375
1/4
1 - 1/4
3/8
Part Number
Nominal Seal
C/S
I.D.
Height
SY 25001500375
1/4
1 - 1/2
3/8
SY 25002000375
1/4
2
3/8
SY 25002000562
1/4
2
9/16
SY 25002375375
1/4
2 - 3/8
3/8
SY 25004750625
1/4
4 - 3/4
5/8
SY 25005500750
1/4
5 - 1/2
3/4
SY 31202625625
5/16
2 - 5/8
5/8
SY 31203750625
5/16
3 - 3/4
5/8
SY 31203750875
5/16
3 - 3/4
7/8
SY 31204750875
5/16
4 - 3/4
7/8
SY 31205750875
5/16
5 - 3/4
7/8
SY 31206750625
5/16
6 - 3/4
5/8
SY 37502750375
3/8
2 - 3/4
3/8
SY 37502750625
3/8
2 - 3/4
5/8
SY 37503500625
3/8
3 - 1/2
5/8
SY 37507500562
3/8
7 - 1/2
9/16
SY 43703875750
7/16
3 - 7/8
3/4
SY 50007875100
1/2
7 - 7/8
1


Piston Style - Imperial












Urethane U-cups fit into standard deep loaded U-cup glands.
For groove dimensions please reference the loaded U-cup section.

Part Number
C/S
 Nominal Seal
Height
I.D.
O.D.
PI 18700875312
3/16
7/8
1 - 1/4
5/16
PI 18701125312
3/16
1 - 1/8
1 - 1/2
5/16
PI 18701375312
3/16
1 - 3/8
1 - 3/4
5/16
PI 18701625312
3/16
1 - 5/8
2
5/16
PI 18702125312
3/16
2 - 1/8
2 - 1/2
5/16
PI 25000750375
1/4
3/4
1 - 1/4
3/8
PI 25001000375
1/4
1
1 - 1/2
3/8
PI 25001250375
1/4
1 - 1/4
1 - 3/4
3/8
PI 25001500375
1/4
1 - 1/2
2
3/8
PI 25001750375
1/4
1 - 3/4
2 - 1/4
3/8
PI 25002000375
1/4
2
2 - 1/2
3/8
PI 25002250375
1/4
2 - 1/4
2 - 3/4
3/8
PI 25002500375
1/4
2 - 1/2
3
3/8
PI 25002750375
1/4
2 - 3/4
3 - 1/4
3/8
PI 25003000375
1/4
3
3 - 1/2
3/8
PI 25003250375
1/4
3 - 1/4
3 - 3/4
3/8
PI 25003500375
1/4
3 - 1/2
4
3/8
PI 25004000375
1/4
4
4 - 1/2
3/8
PI 25004500375
1/4
4 - 1/2
5
3/8
PI 25005000375
1/4
5
5 - 1/2
3/8
Part Number
C/S
 Nominal Seal
Height
I.D.
O.D.
PI 25005500375
1/4
5 - 1/2
6
3/8
PI 31201375500
5/16
1 - 3/8
2
1/2
PI 31201875500
5/16
1 - 7/8
2 - 1/2
1/2
PI 31202375500
5/16
2 - 3/8
3
1/2
PI 31202875500
5/16
2 - 7/8
3 - 1/2
1/2
PI 31203375500
5/16
3 - 3/8
4
1/2
PI 31203875500
5/16
3 - 7/8
4 - 1/2
1/2
PI 31205375500
5/16
5 - 3/8
6
1/2
PI 37501750625
3/8
1 - 3/4
2 - 1/2
5/8
PI 37502250625
3/8
2 - 1/4
3
5/8
PI 37502500625
3/8
2 - 1/2
3 - 1/4
5/8
PI 37502750625
3/8
2 - 3/4
3 - 1/2
5/8
PI 37503250625
3/8
3 - 1/4
4
5/8
PI 37503750625
3/8
3 - 3/4
4 - 1/2
5/8
PI 37504250625
3/8
4 - 1/4
5
5/8
PI 37504750625
3/8
4 - 3/4
5 - 1/2
5/8
PI 37505250625
3/8
5 - 1/4
6
5/8
PI 37505750625
3/8
5 - 3/4
6 - 1/2
5/8
PI 37506250625
3/8
6 - 1/4
7
5/8
PI 37507250625
3/8
7 - 1/4
8
5/8

Custom sizes are available through Hi-Tech Seals. Please contact a sales representative with your desired size.