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Steel 4-Bolt Flange Adapter, 1.25 Inch Code 61 Flange, O-Ring Half To 1.25 Inch Female NPT, Straight

Description & Features

This high-quality Steel 4-Bolt Flange Adapter is designed for robust industrial applications featuring a 1.25-inch Code 61 Flange and O-Ring Half to 1.25-inch Female NPT Straight.

Manufactured by Anchor Fluid Power this adapter meets stringent performance requirements making it ideal for demanding environments. Its steel construction ensures durability and reliability under high-pressure conditions.

The adapter includes a 1.25-inch Pad Size and Pipe Size adhering to industry standards for flanges and fittings.

The straightforward design allows easy integration into existing systems providing a secure and leak-free connection without the need for additional thread sealants.

Perfect for use in hydraulic and fluid power systems.

MPN: C1DS76

Supplier Part Number: W4-20-20

Specifications

A 2.88	B 3.13	C 1.19	D 2.31	E 0.94	Brand Anchor Fluid Power	Brand Anchor Fluid Power	Pack Size 1.00	UOM EA	F 0.69	G 1.67	H 1.25 in	Includes None	K 0.47	Pad Size 1.25	Pipe Size 1.25	Supplier Part Number W4-20-20	Thread Sealant No	Alternate Part Numbers Alternate Part Number C1DS76	Product Weight 1.28 lbs

Similar Products

Model Number	Includes	Pipe Size	Pad Size	A	B	C	D	E	F	G	H	K
W4-20-20 Steel Code 61 To Female NPT Adapter	None	1.25	1.25	2.875	3.125	1.188	2.313	0.94	0.69	1.672	1.25 in	0.469
W4-24-24U Steel Code 61 To Female NPT Adapter	Mounting bolts, lock washers and Buna-N O-Ring	1.5	1.5	3.25	3.688	1.406	2.75	1.19	0.75	1.922	1.5 in	0.531
W4-32-32U Steel Code 61 To Female NPT Adapter	Mounting bolts, lock washers and Buna-N O-Ring	2	2	3.813	4	1.688	3.063	1.38	0.875	2.406	2 in	0.531

Product Questions & Answers (3)

Question by: Randy C on Apr 1, 2026, 3:30 PM

So this thing's steel, right? Just wanna make sure it can hold up to some pressure.

Answer by: Customer Support on Apr 2, 2026, 7:33 PM

Constructed from steel, this adapter is certainly durable and reliable, especially when used in high-pressure hydraulic and fluid power systems.

Question by: Dean B on Dec 23, 2025, 4:46 PM

Got a machine that's running 1.25 inch NPT female ports and I need to tie into a Code 61 flange setup. This straight adapter gonna work for that?

Answer by: Customer Support on Dec 24, 2025, 7:05 PM

That's exactly what this fitting is built for. One end connects to a 1.25 inch Code 61 four-bolt flange using an O-ring half connection, and the other end is a 1.25 inch female NPT thread. Both the pad size and pipe size are 1.25 inch, so if your port matches that spec, you're good to go. The O-ring face seal on the flange side handles the sealing, so you won't need thread sealant on that end either.

Question by: Larry S on Aug 6, 2025, 10:59 AM

got a 1-1/4 code 61 4-bolt flange on one side and need to go into 1-1/4 female npt on the other. is that what this adapter is?

Answer by: Customer Support on Aug 8, 2025, 8:04 AM

For tying an SAE Code 61 4-bolt flange connection to a 1.25 inch female NPT port, this is the right style. It is a straight steel adapter with a 1.25 inch Code 61 flange on the O-ring half and a 1.25 inch female NPT on the other end.