Table I Classes 2B, 3B

Transcription

1 Table I Classes 2B, 3B Basic Basic Classes X X + Classes X X + = + Lead Half Angle = + Lead Half Angle Series CL. 2B CL. 3B = - Tol. Tol. Series CL. 2B CL. 3B = - Tol. Tol. #0-80 UNF ' 9/16-24 UNEF ' #1-64 UNC ' 5/ 8-11 UNC ' #1-72 UNF ' 5/ 8-18 UNF ' #2-56 UNC ' 5/ 8-24 UNEF ' #2-64 UNF ' 11/16-24UNEF ' #3-48 UNC ' 3/ 4-10 UNC ' #3-56 UNF ' 3/ 4-16 UNF ' #4-40 UNC ' 3/ 4-20 UNEF ' #4-48 UNF ' 13/16-20UNEF ' #5-40 UNC ' 7/ 8-9 UNC ' #5-44 UNF ' 7/ 8-14 UNF ' #6-32 UNC ' 7/ 8-20 UNEF ' #6-40 UNF ' 15/16-20 UNEF ' #8-32 UNC ' 1"-8 UNC ' #8-36 UNF ' 1"-12 UNF ' #10-24 UNC ' 1"-14 UNS ' #10-32 UNF ' 1"- 20 UNEF ' #12-24 UNC ' 11/16-12 UN ' #12-28 UNF ' 11/16-18 UNEF ' #12-32 UNEF ' 11/ 8-7 UNC ' 1/ 4-20 UNC ' 11/ 8-12 UNF ' 1/ 4-28 UNF ' 1 1/ 8-18 UNEF ' 1/ 4-32 UNEF ' 13/16-12 UN ' 5/16-18 UNC ' 13/16-18UNEF ' 5/16-24 UNF ' 11/ 4-7 UNC ' 5/16-32UNEF ' 11/ 4-12 UNF ' 3/ 8-16 UNC ' 11/ 4-18UNEF ' 3/ 8-24 UNF ' 15/16-12 UN ' 3/ 8-32 UNEF ' 15/16-18UNEF ' 7/16-14 UNC ' 13/ 8-6 UNC ' 7/16-20 UNF ' 13/ 8-12 UNF ' 7/16-28 UNEF ' 13/ 8-18 UNEF ' 1/ 2-13 UNC ' 17/16-12 UN ' 1/ 2-20 UNF ' 17/16-18 UNEF ' 1/ 2-28 UNEF ' 11/ 2-6 UNC ' 9/16-12 UNC ' 11/ 2-12 UNF ' 9/16-18 UNF ' 11/ 2-18UNEF ' 25

2 Table II Classes 2A, 3A Class 2A Class 3A = - = + #0-80 UNF /16-24 UNEF #1-64 UNC / 8-11 UNC #1-72 UNF / 8-18 UNF #2-56 UNC / 8-24 UNEF #2-64 UNF /16-24 UNEF #3-48 UNC / 4-10 UNC #3-56 UNF / 4-16 UNF #4-40 UNC / 4-20 UNEF #4-48 UNF /16-20 UNEF #5-40 UNC / 8-9 UNC #5-44 UNF / 8-14 UNF #6-32 UNC / 8-20 UNEF #6-40 UNF /16-20UNEF #8-32 UNC "- 8 UNC #8-36 UNF "-12 UNF #10-24 UNC "-14 UNS #10-32 UNF "- 20 UNEF #12-24 UNC /16-12 UN #12-28 UNF /16-18UNEF #12-32 UNEF / 8-7 UNC / 4-20 UNC / 8-12 UNF / 4-28 UNF / 8-18UNEF / 4-32 UNEF /16-12 UN /16-18 UNC /16-18UNEF /16-24 UNF / 4-7 UNC /16-32 UNEF / 4-12 UNF / 8-16 UNC / 4-18 UNEF / 8-24 UNF /16-12 UN / 8-32 UNEF /16-18 UNEF /16-14 UNC / 8-6 UNC /16-20 UNF / 8-12 UNF /16-28 UNEF / 8-18 UNEF / 2-13 UNC /16-12 UN / 2-20 UNF /16-18UNEF / 2-28 UNEF / 2-6 UNC /16-12 UNC / 2-12 UNF /16-18 UNF / 2-18UNEF Class 2A Class 3A = - = + 26

3 Table III Classes 2B, 3B = + = - GO 2B NO GO 3B NO GO #4-40 UNC #4-48 UNF #5-40 UNC #6-32 UNC #6-40 UNF #8-32 UNC #8-36 UNF #10-24 UNC #10-32 UNF #12-24 UNC /4-20 UNC /4-28 UNF /16-18 UNC /16-24 UNF /8-16 UNC /8-24 UNF /16-14 UNC /16-20 UNF /2-13 UNC /2-20 UNF /16-12 UNC /16-18 UNF /8-11 UNC /8-18 UNF /4-10 UNC /4-16 UNF

4 Table IV (Internal) Thread Plug Gages Table V (External) Thread Ring & Setting Plug Gages SIZE PITCH (Basic) 4H 6H M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M SIZE PITCH 4g & 6g 4g 6g M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M M Note: To obtain inch values for pitch diameters multiply by

5 Table VI FOR STRAIGHT PIPE GAGES THREAD PLUG GAGES THREAD RING GAGES PIPE SIZE 1/ /8-27 1/4-18 3/8-18 1/2-14 3/4-14 1"-11 1/2 1 1/4-11 1/2 1 1/2-11 1/2 2"-11 1/2 MEMBER NPSF NPSI NPSL NPSC NPSM-2B NPSM-2A NPSL NPSM National Pipe Straight Mechanical These external and internal threads are intended for free-fitting mechanical joints where there are no internal pressures. The product is gaged with straight and plug and ring gages. NPSL National Pipe Straight Locknut These external and internal threads are intended to produce a thread having the largest diameter that is possible to cut on standard pipe. The product is gaged with straight and plug and ring gages. NH National Fire-Hose Coupling Threads These external and internal threads are intended for fire hose, garden hose, chemical engine and booster hose. The product is gaged with straight and plug and ring gages. NPSH National Hose Coupling Threads These external and internal threads are intended for steam, air, water, and all other hose connections to be made up with standard pipe threads. The product is gaged with straight and plug and ring gages. NPSC National Pipe Straight Coupling These internal threads are intended to form low pressure tight joints when assembled with NPT external threads by using a sealer. The product may be gaged with a NPT plug gage or with straight and plug gages. NPSF Dryseal American Standard Fuel These internal threads are intended for use in soft or ductile materials for assembly with NPTF external threads without using a sealer. The product may be gaged with NPTF-LI basic notch plug gage or with straight and plug gages. NPSI Dryseal American Standard Intermediate These internal threads are intended for use in hard or brittle materials for assembly with PTF-SAE short external threads but may also be assembled with full length NPTF external threads. The product may be gaged with a NPTF-LI basic notch plug gage or with straight and plug gages. NOTE: NPSM and NPSF Series Gages are available from stock. 29