S t a y C o n n e c t e d w i t h H e y c o L i q u i d T i g h t C o r d g r i p s Heyco Metal Locknuts NPT ThreadStraight NPS Threads for use with NPT Threaded Fittings THREAD TYPE STAMPED STEEL ZINC DIE-CAST DFARS Compliant AND SIZE PART NO. DESCRIPTION PART NO. DESCRIPTION 1/4 NPT 2238 LN 1/4* - - 3/8 NPT 2242 LN 3/8* - - 1/2 NPT 2250 LN 1/2 9800 LN 1/2 DC 3/4 NPT 2251 LN 3/4 9801 LN 3/4 DC 1 NPT 2252 LN 1 9802 LN 1 DC 1-1/4 NPT 9806 LN 1-1/4 9803 LN 1-1/4 DC 1-1/2 NPT 9807 LN 1-1/2 9804 LN 1-1/2 DC 2 NPT 9808 LN 2 9805 LN 2 DC 2-1/2 NPT 9809 LN 2-1/2 3 NPT 9810 LN 3 Stamped Steel Nut *Wrenching flats are not crenellated PG ThreadNickel-Plated Brass THREAD TYPE PART NO. DESCRIPTION PART DIMENSIONS AND SIZE AB Thickness Wrenching Flats in. mm. in. mm. PG 7 2257 Brass LN PG 7 .110 2,8 .591 15,0 PG 9 2258 Brass LN PG 9 .110 2,8 .709 18,0 PG 11 2259 Brass LN PG 11 .118 3,0 .827 21,0 PG 13.5 2260 Brass LN PG 13 .118 3,0 .906 23,0 Zinc Die-cast Nut PG 16 2261 Brass LN PG 16 .118 3,0 1.024 26,0 PG 21 2262 Brass LN PG 21 .138 3,5 1.261 32,0 PG 29 2263 Brass LN PG 29 .158 4,0 1.615 41,0 PG 36 2268 Brass LN PG 36 .197 5,0 2.009 51,0 PG 42 2269 Brass LN PG 42 .197 5,0 2.364 60,0 Metric ThreadNickel-Plated Brass THREAD TYPE PART NO. DESCRIPTION PART DIMENSIONS AND SIZE AB Thickness Wrenching Flats in. mm. in. mm. Nickel-Plated Brass M6 x 1 2243 Brass LN M6 .110 2,8 .354 9,0 M8 x 1,25 2244 Brass LN M8 .110 2,8 .433 11,0 M10 x 1,5 2245 Brass LN M10 .110 2,8 .512 13,0 M12 x 1,5 2246 Brass LN M12 .118 3,0 .591 15,0 M16 x 1,5 2247 Brass LN M16 .118 3,0 .748 19,0 M20 x 1,5 2248 Brass LN M20 .138 3,5 .945 24,0 M25 x 1,5 2249 Brass LN M25 .138 3,5 1.181 30,0 M32 x 1,5 2253 Brass LN M32 .177 4,5 1.417 36,0 M40 x 1,5 2254 Brass LN M40 .177 4,5 1.811 46,0 M50 x 1,5 2255 Brass LN M50 .217 5,5 2.165 55,0 A B 1-800-526-4182 732-286-1800 (NJ) FAX: 732-244-8843 www.heyco.com 3-42