Mil-Spec, SAE, Standard, Large Outside Diameter, USS
Nylon, Phenolic Resin, Brass, Steel, Alloy Steel
2 3/4", 2 3/16", 1 37/64", 15/16", 3 1/2"
0.75", 0.313", 0.375", 0.875", 1.125"
1.01 mm, 0.6 mm, 0.3 → 0.25 mm, 1.65 - 1.90 mm, 1.08 mm
3/8", 3/4", 5/8", #8, 1 1/8"
BS 3410, BS 4320:1968, ASTM F436, ASME B18.8.1, BS 4320G