Gas Fittings

How to determine Pipe Thread Size

Pipe thread sizes do not refer to any physical dimensions. The outside diameter of each pipe fitting
must be measured and compared to the table for size identification. For example: a 1/4" NPT has an outside dimension of 0.54". This is especially important when looking for Regulator fittings.

NPT SIZE
THREAD DIAMETER
THREAD DIAMETER (O.D. of MPT or I.D.
of FPT)
1/8" NPT 0.405
1/4" NPT 0.54
3/8" NPT 0.675
1/2" NPT 0.84
3/4" NPT 1.05
1" NPT 1 1.315
1-1/4" NPT 1.66
1-1/2" NPT 1.9
2" NPT 2.375
2-1/2" NPT 2.875
3" NPT 3.5
4" NPT 4.5
Product Image Item Name- Price
Brass Cap - 1/4" Female Flare Thread

Brass Cap - 1/4" Female Flare Thread

1/4" BRASS MANIFOLD CAP Terminate a port or male Flare threaded...
$0.79




CO2 Regulator Washer - Composite

CO2 Regulator Washer - Composite

CO2 WASHER - COMPOSITE Used to seal between Gas tank and...
$0.25




CO2 Regulator Washer - Nylon

CO2 Regulator Washer - Nylon

CO2 WASHER - NYLON Used to seal between Gas tank and Regulator. It is...
$0.25




Hex Nipple - Right Hand Thread

Hex Nipple - Right Hand Thread

HEX NIPPLE - RHT This fitting allows you to connect two right hand...
$3.46




Hex Nipple - Left Hand Thread

Hex Nipple - Left Hand Thread

HEX NIPPLE - LHT This fitting allows you to connect two left hand...
$3.36




Smooth Nipple - Right Hand Thread - 2in.

Smooth Nipple - Right Hand Thread - 2in.

SMOOTH NIPPLE - Right Hand Thread This fitting allows you to connect two...
$2.75




Hose Stem

Hose Stem

HOSE STEM 5/16" Barb x 1/4" Male Pipe Thread (MPT)
$1.49




MFL Adapter to MPT - Right Hand Thread

MFL Adapter to MPT - Right Hand Thread

MFL ADAPTER TO PIPE THREAD - RIGHT HAND THREAD Allows you to attach a...
$1.25




MFL Adapter to MPT - Left Hand Thread

MFL Adapter to MPT - Left Hand Thread

MFL ADAPTER TO PIPE THREAD - LEFT HAND THREAD Allows you to attach a...
$2.36




MFL Adapter to MPT w/ Check Valve

MFL Adapter to MPT w/ Check Valve

MFL ADAPTER TO PIPE THREAD w/ CHECK VALVE Allows you to attach a 1/4"...
$2.59




Pipe Plug - 1/4" MPT

Pipe Plug - 1/4" MPT

PIPE PLUG 1/4" Male Pipe Thread. Allows you to seal off / terminate...
$0.86




Hex Plug - 1/4" Right Hand Thread

Hex Plug - 1/4" Right Hand Thread

HEX PLUG - 1/4" RHT Hex Plug. 1/4" MPT Right Hand Threaded....
$0.99




Hex Plug - Left Hand Thread

Hex Plug - Left Hand Thread

HEX PLUG - LHT Hex Plug. 1/4" MPT Left Hand Threaded. Allows you...
$1.74




Barbed Hose T - 5/16"

Barbed Hose T - 5/16"

BARBED HOSE T Barbed "T" fitting. 5/16" on all sides....
$6.49




Pipe Reducer

Pipe Reducer

PIPE REDUCER Allows you to reduce from 3/8" MPT to 1/4" FPT...
$1.99




Chudnow Mfg. Clearance
Chi Company Int.

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