Tube O.D. | Compression | Flare | Inverted flare | Internal Compression | "AF" Nitex style Airbrake | Solder-On |
1/8'' | 5/16''-24 UNF | 5/16''-24 UNF | 5/16''-28 UNS | 9/32''-26 Brass Thread | 1/4''-28 UNF | 5/16''-26 Brass Thread |
3/16'' | 3/8''-24 UNF | 3/8''-24 UNF | 3/8''-24 UNF | 3/8''-24 UNF | 3/8''-24 UNF | 1/8''-28 BSP |
1/4'' | 7/16''-24 UNS | 7/16''-24 UNF | 7/16''-24 UNS | 7/16''-24 UNS | 7/16''-20 UNF | 7/16''-20 UNF |
5/16'' | 1/2''-24 UNS | 1/2''-20 UNF | 1/2''-20 UNF | 1/2''-24 UNS | 1/2''-20 UNF | 1/4''-19 BSP |
3/8'' | 9/16''-24 UNEF | 5/8''-18 UNF | 5/8''-18 UNF | 9/16-24 UNEF | 9/16''-18 UNF | 3/8''-19 BSP |
1/2'' | 11/16''-20 UN | 3/4''-16 UNF | 3/4''-18 UNS | 3/4''-24 UNS | 3/4''-16 UNF | 1/2''-14 BSP |
5/8'' | 13/16''-18 UNS | 7/8''-14 UNF | - | 7/8''-20 UNEF | - | - |
3/4'' | 1''-18 UNS | 1-1/16''-14 UN | - | 1.025''-18 UNS | - | 3/4''-14 BSP |
THREAD ABBREVIATIONS & DEFINITIONS | |
Term | Definition |
GAS | B.S.P. Thread ( Common term in plumbing trade) |
M.I. | Male Iron - BSP Male-common term in plumbing trade |
F.I. | Female Iron - BSP Female-common term in plumbing trade |
P.T | Pipe Thread |
BSP | British Standard Pipe |
BSPT | British Standard Pipe Taper |
BSPP | British Standard Pipe Parallel |
NPT | National Pipe Taper |
NPTF | National Pipe Taper Fuel |
NPS | National Pipe Straight |
UNF | Unified National Fine (Formerly SAE Thread) |
SAE | Society of Automotive Engineers |
J.I.C | Joint Industries Conference or J.I.Case |
ISO METRIC | International Standards Organisation |
ANP | American National Pipe |
ANPT | American National Pipe Taper |
NP | National Pipe |
UNEF | Unified National Extra Fine |
UNS | Unified National Special (Not standard UNF thread) |
UN | Unified National (Not standard UNF thread) |
BRASS | Fine thread - always 26TPI regardless of major diameter |
DRY SEAL | NPT to NPS threads are dry seal-no sealing compounds used |
CONDUIT | Thread common to Electrical Industry |
Gas Components Australia
17 Medway Street,
Rocklea QLD 4106
(07) 3255 9255
W.A (08) 6253 8822
S.A (07) 3255 9255
VIC (07) 3255 9255
NSW (07) 3255 9255
TAS (07) 3255 9255
N.T (08) 6253 8822