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Mil Spec O-Rings
An O-Ring is a torus, or doughnut shaped object, with a circular cross section. Usually made from an elastomer, although such materials as metal or plastic are sometimes used. Listed below are the military specifications available from Porter Seal Company. Sizes for military orings are the same as provided in the Industrial Section. Then choose the Military specification you require from the Military Oring Section.
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Model NumberProduct NameMil SpecMaterial
AN123851 THRU AN123950 Military O-RingAMS727475 Duro Nitrile
AN123951 THRU AN124050 Military O-RingAMS727065-75 Duro Nitrile
AN6225 Military O-RingMIL-P-551670 Duro Nitrile
AN6226 Military O-RingVariousVarious
AN6227 Military O-RingMIL-P-5516 CLB70 Duro Nitrile
AN6228 Military O-Ring Bronze or Alum Alloy
AN6229 Military O-Ring Alum Alloy
AN6230 Military O-RingMIL-P-5516 CLB70 Duro Nitrile
AN6231 Military O-RingMIL-P-551590 Duro Nitrile
AN6244 Military O-RingMIL-W-5521 
AN6246 Military O-RingLEATHER 
AN6290 Military O-RingMIL-P-551090 Duro Nitrile
AN6291 Military O-RingMIL-W-5521 
AN930 Military O-Ring  
AS17413 Military O-RingAMS727670-80 Duro Fluorocarbon
AS28772 Military O-RingMIL-P-5516 Class B70 Duro Nitrile
AS28775 Military O-RingMIL-P-2573270 Duro Nitrile
AS28776 Military O-RingMIL-S-5049Metal or Rubber
AS28778 Military O-RingMIL-W-5521 
AS29512 Military O-RingMIL-P-5315B70 Duro Nitrile
AS29513 Military O-RingMIL-P-5315B70 Duro Nitrile
AS29561 Military O-RingMIL-R-736270 Duro Nitrile
AS3084 Military O-RingAMS728075 Duro Fluorocarbon
AS3085 Military O-RingAMS728075 Duro Fluorocarbon
AS3208 Military O-RingAMS727675 Duro Fluorocarbon
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