DİŞ TİPİ	DİŞ ÇAPI D	DİŞ AKSI D2	DİŞ ARALIĞI P	DİŞ ADEDİ Z
NPT 1/4"	13,716	12,7635	1,337	18
NPT 3/8"	17,145	16,1925	1,337	18
NPT 1/2"	21,336	20,1115	1,814	14
NPT 3/4"	26,670	25,4455	1,814	14
NPT 1	33,401	31,9100	2,208	11,5
NPT 1 1/4"	42,164	40,6730	2,208	11,5
NPT 1 1/2"	47,800	----	2,208	11,5
NPT 2"	60,325	58,8340	2,208	11,5
NPT 2 1/2"	73,025	70,8817	3,175	8
NPT 3"	88,900	86,7567	3,175	8
NPT 4"	114,300	112,1567	3,175	8

AĞIRLIK 1 ons (oz) = 437,5 grains = 28,350 g 1 pound (ıb) = 16 oz = 0,4536 kg 1 stone = 14 b = 6,35 kg 1 ton = 2,240 ıb = 0,0161 t 1 gram (g) = 1,000 mg = 0,0353 oz 1 kilogram (kg) = 1,000 g = 2,2046 ıb 1 ton = 1,000 kg = 0,9842 ton	UZUNLUK 1 inch = 0,027 yard = 2,54 cm 1 ft = 12 inch = 0,31 m 1 yard = 3 ft = 0,91 m 1 mil = 5,280 ft = 1,60 km 1 cm = 0,032 ft = 0,39 inch 1 m = 36 inch =1,09 yard 1 km 1,760 yard = 0,62 mil
HACİM 1 kübik yard = 27 cu ft = 0,77 m3 1 pint (pt) = 4 gills = 0,57 L 1 galon (gal) = 8 pt = 4,55 L 1 desimetreküp = 1,000 cm3 = 0,04 cu ft 1 metreküp (m3) = 1,000 dm3 = 1,31 cu yd 1 litre (L) = 1 dm3 = 0,22 gal