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

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Pipe & Hose Fittings

75 results

Lot Of 36 Pieces Proline 1/2 in. Threaded Flare x 3/8 Brass Adapter Coupling
Brand New
RM 180.34
Was: RM 212.16was - RM 212.16
or Best Offer
RM 122.54 shipping
Lot Of 12 Pieces Proline 1/2 in. Threaded Flare x 3/8 Brass Adapter Coupling
Brand New
RM 72.13
Was: RM 84.86was - RM 84.86
or Best Offer
RM 100.69 shipping
1/2 MNPT x 3/8 FNPT 316ss Reducing Bushing Hex Fitting DK-LOK GHB-8-6N-S
Brand New
RM 61.10
Was: RM 67.89was - RM 67.89
RM 94.67 shipping
Stainless Steel 304 Fitting Reducing Coupling Class 150 1/2" X 3/8"...
Brand New
RM 25.84
RM 95.09 shipping
1/2 to 3/8" Male NPT Brass Reducer Elbow Fitting, Fuel, Air, Water, FASPARTS
Brand New · Unbranded
RM 64.75
RM 49.56 shipping
98 sold
Reducer Pipe Adapter 1/2 Female Npt to 3/8 Male Npt Brass Fitting Water Air Gas
Brand New · Unbranded
RM 46.21
RM 49.56 shipping
135 watching
FITOK 90° Street Elbow 1/2 FNPT x 3/8 MNPT 316 SS 5600 psi, SS-PSE-NS8-NS6
Brand New
RM 121.36
RM 78.41 shipping
Male BSPT to Pushfit Adapter ¦ 1/2" BSPT x 3/8" Pushfit ¦ DMFit AMCBT0607
Brand New
RM 51.18 to RM 255.60
RM 89.26 shipping
FITOK Pipe Fitting Reducing Hex Nipple 1/2 x 3/8 Male NPT 316 SS 7800 psi
Brand New
RM 55.12
RM 76.46 shipping
DPS-8-6 Double Permanent Live Swivel Male 1/2 NPT to Male 3/8 NPT
New (Other) · Unbranded
RM 148.51
RM 81.77 shipping
Reducer 1/2 Female Npt x 3/8 Npt Male Forged Street Elbow Fitting Water Oil Gas
Brand New · Unbranded
RM 58.47
RM 49.56 shipping
91 sold
1/2 - 3/8 Female Npt Fpt Steel Reducer Elbow Fitting Fuel, Air, Water, Oil, Gas
Brand New · Unbranded
RM 53.21
RM 49.56 shipping
FITOK 316 SS Reducing Bushing 1/2 MNPT x 3/8 FNPT, SS-PRB-NS8-NS6
Brand New
RM 50.20
RM 76.34 shipping
Steel 1/2 - 3/8 Female Npt Fpt Pipe Fitting Straight Coupling Reducer Adapter
Brand New · Unbranded
RM 40.95
RM 49.56 shipping
Only 1 left!
Female Pipe Reducer 1/2" to 3/8" Npt Adapter Coupler Brass Fitting Water Oil Gas
Brand New · Unbranded
RM 57.03
RM 49.56 shipping
1/2 to 3/8 Npt Female Pipe L Reducer Elbow 90 Degree Brass Fitting Water Oil Gas
Brand New · Unbranded
RM 79.73
RM 49.56 shipping
1/2" X 3/8" Male NPT (XH) Concentric Swage Nipple Zinc Plated WPB SWG1050321
Brand New · Unbranded
RM 52.87
RM 76.42 shipping
(Lot of 2) JB Smith 5404-08-06 Pipe Hex Long Nipple Male 1/2 NPT to Male 3/8 NPT
New (Other)
RM 42.43
RM 76.12 shipping
FS2501-08-06 Hydraulic Fitting 90° Elbow Male 1/2 ORFS-08 to Male 3/8" NPT
New (Other) · Unbranded
RM 44.55
RM 76.17 shipping
1/2"x3/8" NPT Black Bushing Pack Of 25
Brand New
RM 106.08
RM 77.99 shipping
1/2" Female NPT to 3/8" Male JIC Flare Pipe Fitting Reducer Adapter SS304
Brand New · Unbranded
RM 55.12
RM 76.46 shipping
1/2" to 3/8" Male Npt Mpt Steel Male Elbow Reducer Fitting Fuel, Air, Oil, Gas
Brand New
RM 53.34
RM 49.56 shipping
(Lot of 5) 5404-08-06 Pipe Nipple Male 1/2 NPT to Male 3/8 NPT
New (Other) · Unbranded
RM 63.65
RM 79.26 shipping
SWAGE NIPPLE Concentric 1/2" Bevel End x 3/8" NPT Schedule 160 Black Steel
New (Other)
RM 91.87
or Best Offer
RM 77.57 shipping
1/2 BSP Male x 3/8 BSP Female British Pipe Reducer Bushing Brass Adapter Oil Gas
Brand New · Unbranded
RM 32.29
RM 49.56 shipping
4 watching
P00055 DOT MALE ELBOW 90 - SWIVEL PRESTOMATIC DOT 1/2" X 3/8"
Brand New · Parker
RM 233.33
or Best Offer
RM 81.72 shipping
🔥KECKLEY C84400 Bronze 3/8 200 WOG F150, Used Free Shipping🇺🇸
Pre-Owned
RM 50.92
or Best Offer
RM 78.88 shipping
ISE Japan Coupling | 1/2" X 3/8" | 304 SST | SA182F304
Pre-Owned
RM 84.86
or Best Offer
RM 65.30 shipping
1/2" X 3/8" 150# Cast Threaded (NPT) Hex Bushing 304 Stainless Steel SS12040341
Brand New · Unbranded
RM 35.98
RM 75.91 shipping
211 sold
(4) 2501-08-06-B Brass Fitting 90° Elbow Male 1/2 JIC-08 to Male 3/8 NPT
New (Other) · Unbranded
RM 63.65
RM 76.72 shipping
(2) 2605-08-06-08 Branch Tee male JIC-08 to male 3/8 NPT to male JIC-08
New (Other) · Unbranded
RM 53.04
RM 76.42 shipping
1/2" X 3/8" 150 Female NPT Bell Reducer Coupling 304 Stainless SS190403413004
Brand New · Unbranded
RM 36.11
RM 63.86 shipping
175 sold
FITOK 316 SS Hex Reducing Coupling 1/2 × 3/8 FNPT, 4900 psi, SS-PCG-NS8-NS6
Brand New
RM 74.34
RM 77.06 shipping
12 Pcs - 1/2 NPT M X 3/8 NPT FThreaded Hex Reducer Bushing Nylon Red - New
Brand New · Unbranded
RM 42.43
or Best Offer
RM 109.43 shipping
Steel 1/2 to 3/8 Male NPT Pipe Reducer Hex Nipple Fitting Water Oil Gas Liquid
Brand New · Unbranded
RM 42.18
RM 49.56 shipping
51 sold
1 New CountyLine Hydraulic Adapter 1/2" Male to 3/8" Female FAST FREE SHIPPING!
Brand New
RM 55.12
RM 76.46 shipping
FITOK 316 SS Pipe Fitting Adapter 1/2 Female NPT × 3/8 Male NPT
Brand New
RM 64.92
RM 76.76 shipping
1/2"NPT x 3/8" NPT Male to Male Hex Nipple Pipe Fitting Reducer MB-316 Stainless
New (Other) · Unbranded
RM 64.92
Was: RM 76.38was - RM 76.38
or Best Offer
RM 111.26 shipping
1/2" Male JIC 37° Flare X 3/8" Male ORB Straight Adapter Stainless 6400-08-06-SS
Brand New · Unbranded
RM 76.29
RM 154.45 shipping
Industrial Grade 1MNG9 Reducing Coupling, 1/2" x 3/8" Threaded
New (Other)
RM 14.34
Was: RM 16.89was - RM 16.89
RM 96.28 shipping
Brass Pipe Fitting 1/2 NPT Male to 3/8 NPT Female Reducer Face Bushing
Brand New
RM 20.37
RM 86.73 shipping
43 watching
Hex Nipple Reducer 1/2 to 3/8 Male Npt Brass Fitting Lot Of (7)
New (Other) · Unbranded
RM 169.73
RM 115.71 shipping
1/2" X 3/8" 3M/6M Threaded (NPT) Hex Bushing A105 Forged Steel FS12040321
Brand New · Unbranded
RM 31.91
RM 63.73 shipping
Mueller B&K 1/2" x 3/8" Galvanized Hex Bushing Pipe Fitting .5" x 3/8" 511-932BG
Brand New
RM 6.32
or Best Offer
RM 91.99 shipping
P00053 DOT MALE ELBOW 90 - SWIVEL PRESTOMATIC DOT 3/8 X 1/4 5 Pieces
Brand New · Parker
RM 127.30
or Best Offer
RM 108.75 shipping
1/2" x 3/8" Reducer Hex Bushing Male NPT x Female NPT Stainless BU050/0375-304
Brand New
RM 42.13
or Best Offer
RM 76.08 shipping
1/2" - 3/8" Female BSP British Brass Fitting Reducer Pipe Coupling
Brand New · Unbranded
RM 43.66
RM 49.56 shipping
IMPERIAL 1/2" FNPT x 3/8" MNPT 3500 PSI Carbon Steel Reducing Adapter (-8 x -6)
Brand New
RM 31.82
RM 75.78 shipping
Threaded Brass Bushing 3" - 10 tpi Plumbing pipe well 1.93" ID 4" long
Pre-Owned
RM 165.02
or Best Offer
RM 79.73 shipping
Banjo 90 Degree Hose Barb Fitting 1/2" MNPT X 3/8" Barb - HB050/038-90
Brand New
RM 28.64
RM 63.65 shipping
(5 Pack Ships Fast) 1/2 Male NPT x 3/8 Female NPT Hex Brass Reducing Bushing
Brand New
RM 63.44
RM 76.72 shipping
2 pcs. 1/2" x 3/8" NPT Brass Hex Bushing/Reducer - Steampunk Projects
New (Other) · Unbranded
RM 42.39
RM 76.12 shipping
1/2” X 3/8” NPT Female Coupling 304 Stainless Coupler *Lot Of 10* Unused Surplus
New (Other) · Unbranded
RM 252.30
or Best Offer
RM 135.53 shipping
1/2" x 3/8" 150 Female NPT Bell Reducer Coupling Stainless CP050/0375-304 5 Pack
Brand New
RM 75.02
or Best Offer
RM 77.06 shipping
1/2" X 3/8" 150 Female NPT Bell Reducer Coupling 304 Stainless SS190403413004
Brand New · Unbranded
RM 31.87
or Best Offer
RM 99.08 shipping
Hex Bushing Stainless Steel 304 1/2" x 3/8" NPT Guardian
Brand New
RM 24.57
RM 95.05 shipping
1/2 x 3/8 FNPT Brass Reducing Coupling Fitting Swagelok B-8-HRCG-6
New (Other) · Swagelok
RM 30.55
Was: RM 33.95was - RM 33.95
RM 95.30 shipping
Reducer Pipe Adapter 1/2 Female Npt to 3/8 Male Npt Brass Fitting Water Air Gas
Brand New · Unbranded
RM 63.65
or Best Offer
RM 98.82 shipping
Swagelok B-810-2-6 Brass 90° Elbow 1/2" Tube OD x 3/8" Male NPT Tube Fitting
New (Other) · Swagelok
RM 44.51
RM 270.29 shipping
EVERBILT LFA-274 1/2 in. Threaded Flare x 3/8 FIP Brass Adapter Coupling Fitting
Brand New
RM 55.12
RM 94.54 shipping

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

Shop by category

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

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

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

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

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

Male BSPT to Pushfit Adapter ¦ 1/2" BSPT x 3/8" Pushfit ¦ DMFit AMCBT0607

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

ISE Japan Coupling | 1/2" X 3/8" | 304 SST | SA182F304

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

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

(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

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

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

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

1 New CountyLine Hydraulic Adapter 1/2" Male to 3/8" Female FAST FREE SHIPPING!

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

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

1/2" Male JIC 37° Flare X 3/8" Male ORB Straight Adapter Stainless 6400-08-06-SS

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

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

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

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

Mueller B&K 1/2" x 3/8" Galvanized Hex Bushing Pipe Fitting .5" x 3/8" 511-932BG

P00053 DOT MALE ELBOW 90 - SWIVEL PRESTOMATIC DOT 3/8 X 1/4 5 Pieces

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

1/2" - 3/8" Female BSP British Brass Fitting Reducer Pipe Coupling

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

Threaded Brass Bushing 3" - 10 tpi Plumbing pipe well 1.93" ID 4" long

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

(5 Pack Ships Fast) 1/2 Male NPT x 3/8 Female NPT Hex Brass Reducing Bushing

2 pcs. 1/2" x 3/8" NPT Brass Hex Bushing/Reducer - Steampunk Projects

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

1/2" x 3/8" 150 Female NPT Bell Reducer Coupling Stainless CP050/0375-304 5 Pack

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

Hex Bushing Stainless Steel 304 1/2" x 3/8" NPT Guardian

1/2 x 3/8 FNPT Brass Reducing Coupling Fitting Swagelok B-8-HRCG-6

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

Swagelok B-810-2-6 Brass 90° Elbow 1/2" Tube OD x 3/8" Male NPT Tube Fitting

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

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