U18-1.87-37B is a 800 Polyurethane U-Seal with an ID 1.875 X OD 2.250 X Height 0.375
MFG # 187-01.875-375BUR95, 18701875Q375B, P18-1.87-37B, SU-00137, 81-0077, 1385288, 2530062, 10EUS/I 187225/1

Style 800 U-seals are molded from tough, abrasion-resistant polyurethane. The four lobed expander ring energizes the sealing lips, even at zero pressure, to help prevent 'weeping' when the system is idle. SEAL INFORMATION MATERIAL 95A URETHANE TEMPERATURE RANGE -65° to +220° F PRESSURE RANGE 0 to 5,000 PSI SPEED 3 FT/SEC PART NUMBER (Prefix)(CS) - (Inside Dia) - (Height)

Product	U18-1.87-37B
Weight	0.01869500 lbs
Cross Section	3/16
A Nom ID	1-7/8
B Nom OD	2-1/4
C Nom Height	3/8
H Groove Diameter	1.875
D Groove Width	.413
Rod	1.875
Bore	2.250
G Housing Diameter	2.250
I Piston Diameter	2.249
F Throat Diameter	1.876
Temperature Range	-65° TO +220°F
Pressure Range	0 TO 5,000 PSI
Speed	3 FT/SEC