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

A 2.88	B 3.12	C 1.19	D 2.31	E 1.50	Brand Anchor Fluid Power	Brand Anchor Fluid Power	Pack Size 1.00	UOM EA	F 1.03	H 1.25 in	Includes Mounting bolts, lock washers and Buna-N O-Ring	K 0.47	Pad Size 1.25	Pipe Size 1.25	Supplier Part Number W43-20-20U	Thread 1 1-1/4-11-1/2	Thread Sealant No	Alternate Part Numbers Alternate Part Number C1DS88, Alternate Part Number C1JD97, Alternate Part Number W43-20-20U-CB, Alternate Part Number W43-20-20U-HSC	Product Weight 1.47 lbs

Product Questions & Answers

trying to swap out a flange to pipe adapter, is this one the code 61 1-1/4 flange half to 1-1/4 female npt?

Question by: Gary M on Apr 24, 2025, 8:32 PM

It matches a 1.25 inch Code 61 4-bolt flange O-ring half on one end and a 1.25 inch female NPT on the other, with a 1-1/4-11-1/2 NPT thread.

Answer by: Customer Support on Apr 26, 2025, 2:58 PM

What size bolts does this flange adapter use? Just wanna make sure I have everything I need before I start.

Question by: Ronnie C on Dec 16, 2025, 7:57 AM

Mounting bolts and lock washers are included with this Anchor Fluid Power flange adapter, along with a Buna-N O-ring.

Answer by: Customer Support on Dec 18, 2025, 6:26 AM

Model Number	Includes	Pipe Size	Pad Size	A	B	C	D	E	F	Thread 1	H	K
W43-12-12U	Mounting bolts, lock washers and Buna-N O-Ring	0.75	0.75	2.06	2.56	0.875	1.875	1.25	0.84	3/4-14	0.75 in	0.406
W43-24-24U	Mounting bolts, lock washers and Buna-N O-Ring	1.5	1.5	3.25	3.69	1.406	2.75	1.62	1.09	1-1/2-11-1/2	1.5 in	0.531
W43-16-16U	Mounting bolts, lock washers and Buna-N O-Ring	1	1	2.31	2.75	1.031	2.062	1.38	0.97	1-11-1/2	1 in	0.406
W43-20-20U	Mounting bolts, lock washers and Buna-N O-Ring	1.25	1.25	2.88	3.12	1.188	2.312	1.5	1.03	1-1/4-11-1/2	1.25 in	0.469
W43-32-32U	Mounting bolts, lock washers and Buna-N O-Ring	2	2	3.81	4	1.688	3.062	1.62	1.09	2-11-1/2	2 in	0.531