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	Sizing Gauges

Parker O-Ring Sizing Gauges

The Parker Size Gauge for O-Rings is an exclusive Parker Seal Group device consisting of a uniquely marked plastic cone with special Cross-section measuring base and a separate pi tape. The device is used for checking any sample O-Ring up to eight (8.00") inches in diameter to determine the nearest standard Parker Seal 2-dash size (corresponding to ARP568A standard series O-Rings).
NOTE: The device does not measure actual dimensions. Proper identification and markings appear on the cone and tape, making the device easy to read. The cone and tape are sold as a set.

The Cone Measures AS568A Standard Sized O-Rings:

-001 through -041 O-Rings
-110 through -151 O-Rings
-210 through -235 O-Rings
-325 through -337 O-Rings

The Tape Measures AS568A Standard Sized O-Rings:

-042 through -050 O-Rings
-152 through -171 O-Rings
-235 through -266 O-Rings
-338 through -369 O-Rings
-425 through -445 O-Rings

National O-Ring Gauge
For positive measurement every time, use the National O-Ring identification gage for accurate measurements of O-Ring I.D.

Slide gauge for measuring O-Rings up to 13" inside diameter.
Measures As568A dash series, -001-050, -102-178, -201-279, -309-382 and -425-455.

Commercial, Mil-Spec, OEM