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Unit of Measure
1 2 3 4 

Item #

Item Name

Inside Diameter (I.D.)

Actual Size

Outside Diameter (O.D.)

Cross-Section Width (W)

309 N/A 7/16 Inch (in) Inside Diameter Standard Size O-Ring N/A 7/16 in N/A 0.412 in N/A 13/16 in N/A 3/16 in
310 N/A 1/2 Inch (in) Inside Diameter Standard Size O-Ring N/A 1/2 in N/A 0.475 in N/A 7/8 in N/A 3/16 in
311 N/A 9/16 Inch (in) Inside Diameter Standard Size O-Ring N/A 9/16 in N/A 0.537 in N/A 15/16 in N/A 3/16 in
312 N/A 5/8 Inch (in) Inside Diameter Standard Size O-Ring N/A 5/8 in N/A 0.600 in N/A 1 in N/A 3/16 in
313 N/A 11/16 Inch (in) Inside Diameter Standard Size O-Ring N/A 11/16 in N/A 0.662 in N/A 1-1/16 in N/A 3/16 in
314 N/A 3/4 Inch (in) Inside Diameter Standard Size O-Ring N/A 3/4 in N/A 0.725 in N/A 1-1/8 in N/A 3/16 in
315 N/A 13/16 Inch (in) Inside Diameter Standard Size O-Ring N/A 13/16 in N/A 0.787 in N/A 1-3/16 in N/A 3/16 in
316 N/A 7/8 Inch (in) Inside Diameter Standard Size O-Ring N/A 7/8 in N/A 0.850 in N/A 1-1/4 in N/A 3/16 in
317 N/A 15/16 Inch (in) Inside Diameter Standard Size O-Ring N/A 15/16 in N/A 0.912 in N/A 1-5/16 in N/A 3/16 in
318 N/A 1 Inch (in) Inside Diameter Standard Size O-Ring N/A 1 in N/A 0.975 in N/A 1-3/8 in N/A 3/16 in
319 N/A 1-1/16 Inch (in) Inside Diameter Standard Size O-Ring N/A 1-1/16 in N/A 1.037 in N/A 1-7/16 in N/A 3/16 in
320 N/A 1-1/8 Inch (in) Inside Diameter Standard Size O-Ring N/A 1-1/8 in N/A 1.100 in N/A 1-1/2 in N/A 3/16 in
321 N/A 1-3/16 Inch (in) Inside Diameter Standard Size O-Ring N/A 1-3/16 in N/A 1.162 in N/A 1-9/16 in N/A 3/16 in
322 N/A 1-1/4 Inch (in) Inside Diameter Standard Size O-Ring N/A 1-1/4 in N/A 1.225 in N/A 1-5/8 in N/A 3/16 in
323 N/A 1-5/16 Inch (in) Inside Diameter Standard Size O-Ring N/A 1-5/16 in N/A 1.287 in N/A 1-11/16 in N/A 3/16 in
324 N/A 1-3/8 Inch (in) Inside Diameter Standard Size O-Ring N/A 1-3/8 in N/A 1.350 in N/A 1-3/4 in N/A 3/16 in
325 N/A 1-1/2 Inch (in) Inside Diameter Standard Size O-Ring N/A 1-1/2 in N/A 1.475 in N/A 1-7/8 in N/A 3/16 in
326 N/A 1-5/8 Inch (in) Inside Diameter Standard Size O-Ring N/A 1-5/8 in N/A 1.600 in N/A 2 in N/A 3/16 in
327 N/A 1-3/4 Inch (in) Inside Diameter Standard Size O-Ring N/A 1-3/4 in N/A 1.725 in N/A 2-1/8 in N/A 3/16 in
328 N/A 1-7/8 Inch (in) Inside Diameter Standard Size O-Ring N/A 1-7/8 in N/A 1.850 in N/A 2-1/4 in N/A 3/16 in
329 N/A 2 Inch (in) Inside Diameter Standard Size O-Ring N/A 2 in N/A 1.975 in N/A 2-3/8 in N/A 3/16 in
330 N/A 2-1/8 Inch (in) Inside Diameter Standard Size O-Ring N/A 2-1/8 in N/A 2.100 in N/A 2-1/2 in N/A 3/16 in
331 N/A 2-1/4 Inch (in) Inside Diameter Standard Size O-Ring N/A 2-1/4 in N/A 2.225 in N/A 2-5/8 in N/A 3/16 in
332 N/A 3-3/8 Inch (in) Inside Diameter Standard Size O-Ring N/A 3-3/8 in N/A 2.350 in N/A 2-3/4 in N/A 3/16 in
333 N/A 2-1/2 Inch (in) Inside Diameter Standard Size O-Ring N/A 2-1/2 in N/A 2.475 in N/A 2-7/8 in N/A 3/16 in
Unit of Measure
1 2 3 4