1/2 in End A Diameter 3/8 in End B Diameter Threaded Fittings

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Pipe & Hose Fittings

92 results

Lot Of 36 Pieces Proline 1/2 in. Threaded Flare x 3/8 Brass Adapter Coupling
Brand New
$42.50
Was: $50.00was - US $50.00
or Best Offer
$9.99 shipping
Lot Of 12 Pieces Proline 1/2 in. Threaded Flare x 3/8 Brass Adapter Coupling
Brand New
$17.00
Was: $20.00was - US $20.00
or Best Offer
$4.99 shipping
1/2 to 3/8 Npt Female Pipe L Reducer Elbow 90 Degree Brass Fitting Water Oil Gas
Brand New · Unbranded
$18.79
Free shipping
DPS-8-6 Double Permanent Live Swivel Male 1/2 NPT to Male 3/8 NPT
$35.00
Free shipping
Hex Nipple Reducer 1/2 to 3/8 Male Npt Brass Fitting Air Water Fuel Oil Gas
Brand New · Unbranded
$9.75
Free shipping
262 sold
(Lot of 2) JB Smith 5404-08-06 Pipe Hex Long Nipple Male 1/2 NPT to Male 3/8 NPT
$10.00
Free shipping
Reducer Pipe Adapter 1/2 Female Npt to 3/8 Male Npt Brass Fitting Water Air Gas
Brand New · Unbranded
$10.89
Free shipping
956 sold
FITOK Pipe Fitting Reducing Hex Nipple 1/2 x 3/8 Male NPT 316 SS 7800 psi
Brand New
$12.99
Free shipping
Steel 1/2 - 3/8 Female Npt Fpt Pipe Fitting Straight Coupling Reducer Adapter
Brand New · Unbranded
$9.65
Free shipping
Only 1 left!
FS2501-08-06 Hydraulic Fitting 90° Elbow Male 1/2 ORFS-08 to Male 3/8" NPT
$10.50
Free shipping
Brass Pipe Fitting 1/2 NPT Male to 3/8 NPT Female Reducer Face Bushing
Brand New
$4.80
$5.50 shipping
753 sold
Swagelok SS-810-1-6 Stainless Steel, 1/2" Tube OD x 3/8 NPT Male. New, 30 pcs.
Brand New · Swagelok
$330.00
or Best Offer
$12.00 shipping
1/2 - 3/8 Female Npt Fpt Steel Reducer Elbow Fitting Fuel, Air, Water, Oil, Gas
Brand New · Unbranded
$12.54
Free shipping
1/2 MNPT x 3/8 FNPT 316ss Reducing Bushing Hex Fitting DK-LOK GHB-8-6N-S
Brand New
$14.40
Was: $16.00was - US $16.00
$4.51 shipping
Female Pipe Reducer 1/2" to 3/8" Npt Adapter Coupler Brass Fitting Water Oil Gas
Brand New · Unbranded
$13.44
Free shipping
1/2" X 3/8" 150# Cast Threaded (NPT) Hex Bushing 304 Stainless Steel SS12040341
Brand New · Unbranded
$8.48
Free shipping
211 sold
FITOK 90° Street Elbow 1/2 FNPT x 3/8 MNPT 316 SS 5600 psi, SS-PSE-NS8-NS6
Brand New
$28.60
Free shipping
1/2" to 3/8" Male Npt Mpt Steel Male Elbow Reducer Fitting Fuel, Air, Oil, Gas
Brand New
$12.57
Free shipping
Reducer 1/2 Female Npt x 3/8 Npt Male Forged Street Elbow Fitting Water Oil Gas
Brand New · Unbranded
$13.78
Free shipping
87 sold
(Lot of 5) 5404-08-06 Pipe Nipple Male 1/2 NPT to Male 3/8 NPT
$15.00
Free shipping
1/2" X 3/8" Male NPT (XH) Concentric Swage Nipple Zinc Plated WPB SWG1050321
Brand New · Unbranded
$12.46
Free shipping
1/2 BSP Male x 3/8 BSP Female British Pipe Reducer Bushing Brass Adapter Oil Gas
Brand New · Unbranded
$7.61
Free shipping
26 sold
1/2" X 3/8" 3M/6M Threaded (NPT) Hex Bushing A105 Forged Steel FS12040321
Brand New · Unbranded
$7.52
Free shipping
IMPERIAL 1/2" FNPT x 3/8" MNPT 3500 PSI Carbon Steel Reducing Adapter (-8 x -6)
Brand New
$7.50
Free shipping
EVERBILT LFA-177 3/8 in. Threaded Flare x 1/2 FIP Brass Adapter Coupling Fitting
Brand New
$9.95
Free shipping
(2) 2605-08-06-08 Branch Tee male JIC-08 to male 3/8 NPT to male JIC-08
$12.50
Free shipping
1/2" X 3/8" 150 Female NPT Bell Reducer Coupling 304 Stainless SS190403413004
Brand New · Unbranded
$8.51
Free shipping
175 sold
HFS(R) 1/2" NPT Male to 3/8" SAE Male Flare Tubing Adapter 304 Stainless Steel
Brand New
$11.99
Free shipping
Stainless Steel Hex Reducer Pipe Fitting 1/2x3/8 BSPT Male Thread Connector
Brand New
$10.94
or Best Offer
$3.57 shipping
3pcs Stainless Steel Hex Reducer Pipe Fitting 1/2x3/8 BSPT Male Thread Connector
Brand New
$17.89
or Best Offer
$3.57 shipping
(4) 2501-08-06-B Brass Fitting 90° Elbow Male 1/2 JIC-08 to Male 3/8 NPT
$15.00
Free shipping
P00055 DOT MALE ELBOW 90 - SWIVEL PRESTOMATIC DOT 1/2" X 3/8"
Brand New · Parker
$46.74
Was: $54.99was - US $54.99
or Best Offer
Free shipping
🔥KECKLEY C84400 Bronze 3/8 200 WOG F150, Used Free Shipping🇺🇸
Pre-Owned
$12.00
or Best Offer
Free shipping
FITOK 316 SS Reducing Bushing 1/2 MNPT x 3/8 FNPT, SS-PRB-NS8-NS6
Brand New
$11.83
Free shipping
Steel 1/2 to 3/8 Male NPT Pipe Reducer Hex Nipple Fitting Water Oil Gas Liquid
Brand New · Unbranded
$9.94
Free shipping
51 sold
1/2 to 3/8" Male NPT Brass Reducer Elbow Fitting, Fuel, Air, Water, FASPARTS
Brand New · Unbranded
$15.26
Free shipping
97 sold
Lot 2 Swagelok SS-8-TA-7-6 , Tube Adapter, 1/2" x 3/8" female NPT
$29.00
Free shipping
1/2"NPT x 3/8" NPT Male to Male Hex Nipple Pipe Fitting Reducer MB-316 Stainless
$15.30
Was: $18.00was - US $18.00
or Best Offer
$15.94 shipping
1/2" Female NPT to 3/8" Male JIC Flare Pipe Fitting Reducer Adapter SS304
Brand New · Unbranded
$12.99
Free shipping
Stainless Steel 304 Fitting Reducing Coupling Class 150 1/2" X 3/8"...
Brand New
$6.09
$4.59 shipping
Hex Nipple Reducer 1/2 to 3/8 Male Npt Brass Fitting Lot Of (7)
$40.00
$6.55 shipping
1/2 Female Npt x 3/8 Npt Male Brass Street Elbow Fitting Water Oil Gas
$10.00
or Best Offer
$2.04 shipping
Swagelok SS-8-TA-1-6 Tube Adapter, 1/2" x 3/8" NPT, several availiable
Brand New · Swagelok
$10.20
$4.50 shipping
FITOK 316 SS Pipe Fitting Adapter 1/2 Female NPT × 3/8 Male NPT
Brand New
$15.30
Free shipping
EVERBILT LFA-274 1/2 in. Threaded Flare x 3/8 FIP Brass Adapter Coupling Fitting
Brand New · Everbilt
$9.95
Free shipping
New Swagelok SS-8-TA-7-6 , Tube Adapter, 1/2" x 3/8" female NPT
Brand New · Swagelok
$13.45
$6.40 shipping
1/2" x 3/8" Reducer Hex Bushing Male NPT x Female NPT Stainless BU050/0375-304
Brand New
$9.93
or Best Offer
Free shipping
Industrial Grade 1MNG9 Reducing Coupling, 1/2" x 3/8" Threaded
$3.58
Was: $3.98was - US $3.98
$6.95 shipping
1/2"x3/8" NPT Black Bushing Pack Of 25
Brand New
$25.00
Free shipping
Banjo 90 Degree Hose Barb Fitting 1/2" MNPT X 3/8" Barb - HB050/038-90
Brand New
$6.75
Free shipping
Everbilt Adapter Coupling Fitting Brass 3/8" Flare x 1/2"FIP 865 370
$2.55
Was: $4.25was - US $4.25
or Best Offer
$5.95 shipping
AIGNEP Nickel Plated Brass Push-to-Connect 1/2" Tube x 3/8" NPT Male - Pack of 3
Brand New
$9.00
or Best Offer
$8.00 shipping
12 Pcs - 1/2 NPT M X 3/8 NPT FThreaded Hex Reducer Bushing Nylon Red - New
Brand New · Unbranded
$10.00
or Best Offer
$6.55 shipping
FITOK 316 SS Hex Reducing Coupling 1/2 × 3/8 FNPT, 4900 psi, SS-PCG-NS8-NS6
Brand New
$17.52
Free shipping
FITOK 37° Flared Tube Fitting 1/2 in Male JIC × 3/8 Male NPT 316 SS 4500psi
Brand New
$13.99
Free shipping
1/2” X 3/8” NPT Female Coupling 304 Stainless Coupler *Lot Of 10* Unused Surplus
$59.46
or Best Offer
$10.85 shipping
FITOK 37° Flared Tube Fitting 1/2 in Male JIC × 3/8 Male NPT 316 SS 90 Deg Elbow
Brand New
$22.79
Free shipping
SWAGE NIPPLE Concentric 1/2" Bevel End x 3/8" NPT Schedule 160 Black Steel
$21.65
or Best Offer
Free shipping
3pcs Stainless Steel Hex Reducer Pipe Fitting 1/2x3/8 BSPT Male Thread Connector
Brand New
$22.17
or Best Offer
Free shipping
304 Stainless Steel Reducer Hex Bushing 1/2" Male to 3/8" Female NPT - Pack of 2
Brand New · Unbranded
$21.99
Free shipping

1/2 in End A Diameter 3/8 in End B Diameter Threaded Fittings

Shop by category

92 results

Lot Of 36 Pieces Proline 1/2 in. Threaded Flare x 3/8 Brass Adapter Coupling

Lot Of 12 Pieces Proline 1/2 in. Threaded Flare x 3/8 Brass Adapter Coupling

1/2 to 3/8 Npt Female Pipe L Reducer Elbow 90 Degree Brass Fitting Water Oil Gas

DPS-8-6 Double Permanent Live Swivel Male 1/2 NPT to Male 3/8 NPT

Hex Nipple Reducer 1/2 to 3/8 Male Npt Brass Fitting Air Water Fuel Oil Gas

(Lot of 2) JB Smith 5404-08-06 Pipe Hex Long Nipple Male 1/2 NPT to Male 3/8 NPT

Reducer Pipe Adapter 1/2 Female Npt to 3/8 Male Npt Brass Fitting Water Air Gas

FITOK Pipe Fitting Reducing Hex Nipple 1/2 x 3/8 Male NPT 316 SS 7800 psi

Steel 1/2 - 3/8 Female Npt Fpt Pipe Fitting Straight Coupling Reducer Adapter

FS2501-08-06 Hydraulic Fitting 90° Elbow Male 1/2 ORFS-08 to Male 3/8" NPT

Brass Pipe Fitting 1/2 NPT Male to 3/8 NPT Female Reducer Face Bushing

Swagelok SS-810-1-6 Stainless Steel, 1/2" Tube OD x 3/8 NPT Male. New, 30 pcs.

1/2 - 3/8 Female Npt Fpt Steel Reducer Elbow Fitting Fuel, Air, Water, Oil, Gas

1/2 MNPT x 3/8 FNPT 316ss Reducing Bushing Hex Fitting DK-LOK GHB-8-6N-S

Female Pipe Reducer 1/2" to 3/8" Npt Adapter Coupler Brass Fitting Water Oil Gas

1/2" X 3/8" 150# Cast Threaded (NPT) Hex Bushing 304 Stainless Steel SS12040341

FITOK 90° Street Elbow 1/2 FNPT x 3/8 MNPT 316 SS 5600 psi, SS-PSE-NS8-NS6

1/2" to 3/8" Male Npt Mpt Steel Male Elbow Reducer Fitting Fuel, Air, Oil, Gas

Reducer 1/2 Female Npt x 3/8 Npt Male Forged Street Elbow Fitting Water Oil Gas

(Lot of 5) 5404-08-06 Pipe Nipple Male 1/2 NPT to Male 3/8 NPT

1/2" X 3/8" Male NPT (XH) Concentric Swage Nipple Zinc Plated WPB SWG1050321

1/2 BSP Male x 3/8 BSP Female British Pipe Reducer Bushing Brass Adapter Oil Gas

1/2" X 3/8" 3M/6M Threaded (NPT) Hex Bushing A105 Forged Steel FS12040321

IMPERIAL 1/2" FNPT x 3/8" MNPT 3500 PSI Carbon Steel Reducing Adapter (-8 x -6)

EVERBILT LFA-177 3/8 in. Threaded Flare x 1/2 FIP Brass Adapter Coupling Fitting

(2) 2605-08-06-08 Branch Tee male JIC-08 to male 3/8 NPT to male JIC-08

1/2" X 3/8" 150 Female NPT Bell Reducer Coupling 304 Stainless SS190403413004

HFS(R) 1/2" NPT Male to 3/8" SAE Male Flare Tubing Adapter 304 Stainless Steel

Stainless Steel Hex Reducer Pipe Fitting 1/2x3/8 BSPT Male Thread Connector

3pcs Stainless Steel Hex Reducer Pipe Fitting 1/2x3/8 BSPT Male Thread Connector

(4) 2501-08-06-B Brass Fitting 90° Elbow Male 1/2 JIC-08 to Male 3/8 NPT

P00055 DOT MALE ELBOW 90 - SWIVEL PRESTOMATIC DOT 1/2" X 3/8"

🔥KECKLEY C84400 Bronze 3/8 200 WOG F150, Used Free Shipping🇺🇸

FITOK 316 SS Reducing Bushing 1/2 MNPT x 3/8 FNPT, SS-PRB-NS8-NS6

Steel 1/2 to 3/8 Male NPT Pipe Reducer Hex Nipple Fitting Water Oil Gas Liquid

1/2 to 3/8" Male NPT Brass Reducer Elbow Fitting, Fuel, Air, Water, FASPARTS

Lot 2 Swagelok SS-8-TA-7-6 , Tube Adapter, 1/2" x 3/8" female NPT

1/2"NPT x 3/8" NPT Male to Male Hex Nipple Pipe Fitting Reducer MB-316 Stainless

1/2" Female NPT to 3/8" Male JIC Flare Pipe Fitting Reducer Adapter SS304

Stainless Steel 304 Fitting Reducing Coupling Class 150 1/2" X 3/8"...

Hex Nipple Reducer 1/2 to 3/8 Male Npt Brass Fitting Lot Of (7)

1/2 Female Npt x 3/8 Npt Male Brass Street Elbow Fitting Water Oil Gas

Swagelok SS-8-TA-1-6 Tube Adapter, 1/2" x 3/8" NPT, several availiable

FITOK 316 SS Pipe Fitting Adapter 1/2 Female NPT × 3/8 Male NPT

EVERBILT LFA-274 1/2 in. Threaded Flare x 3/8 FIP Brass Adapter Coupling Fitting

New Swagelok SS-8-TA-7-6 , Tube Adapter, 1/2" x 3/8" female NPT

1/2" x 3/8" Reducer Hex Bushing Male NPT x Female NPT Stainless BU050/0375-304

Industrial Grade 1MNG9 Reducing Coupling, 1/2" x 3/8" Threaded

1/2"x3/8" NPT Black Bushing Pack Of 25

Banjo 90 Degree Hose Barb Fitting 1/2" MNPT X 3/8" Barb - HB050/038-90

Everbilt Adapter Coupling Fitting Brass 3/8" Flare x 1/2"FIP 865 370

AIGNEP Nickel Plated Brass Push-to-Connect 1/2" Tube x 3/8" NPT Male - Pack of 3

12 Pcs - 1/2 NPT M X 3/8 NPT FThreaded Hex Reducer Bushing Nylon Red - New

FITOK 316 SS Hex Reducing Coupling 1/2 × 3/8 FNPT, 4900 psi, SS-PCG-NS8-NS6

FITOK 37° Flared Tube Fitting 1/2 in Male JIC × 3/8 Male NPT 316 SS 4500psi

1/2” X 3/8” NPT Female Coupling 304 Stainless Coupler *Lot Of 10* Unused Surplus

FITOK 37° Flared Tube Fitting 1/2 in Male JIC × 3/8 Male NPT 316 SS 90 Deg Elbow

SWAGE NIPPLE Concentric 1/2" Bevel End x 3/8" NPT Schedule 160 Black Steel

3pcs Stainless Steel Hex Reducer Pipe Fitting 1/2x3/8 BSPT Male Thread Connector

304 Stainless Steel Reducer Hex Bushing 1/2" Male to 3/8" Female NPT - Pack of 2

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1/2” X 3/8” NPT Female Coupling 304 Stainless Coupler Lot Of 10 Unused Surplus