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12FSWT-12FF Flange Code 61

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Description & Features

A 3/4 inch Code 61 flange connection, the 12FSWT-12FF Flange Code 61 from Brennan Industries is a male-end fitting designed for use in high-pressure hydraulic systems. It belongs to the Brennan 1938-61 series and accommodates a 3/4 inch pipe size, making it well-suited for mid-range hydraulic circuit connections where a secure, leak-resistant flange interface is required.

Key dimensional values include an A dimension of 2.06 inches, B of 2.56 inches, and a flange face diameter (J) with a tight tolerance range of 1.250 to 1.255 inches. The fitting uses a 3/8-16 threaded bolt hole pattern (K2) with a drill size of 0.406 inches, consistent with SAE Code 61 flange standards. The E dimension measures 0.750 inches and F measures 0.560 inches, supporting precise mating with compatible Code 61 flange halves and split flanges.

SKU: 1938-61-12-12

Supplier Part Number (MPN): 1938-61-12-12

Specifications

c Dimensions
7/8 in
Connection Size 1
3/4 in
Connection Size 2
3/4 in
Connection Type
Flanged, Socket Weld
Connection Type 1
Socket Weld Tube
Connection Type 2
Code 61 Flat Face Flanged
d Dimensions
1-7/8 in
Dimensions
2.56 in L x 2.06 in W x 0.75 in H
f Dimensions
0.56 in
Fitting Type
Socket Block
h Dimensions
0.63 in
j Max6 Dimensions
1.255 in
j Maximum Dimensions
1.255 in
j Min5 Dimensions
1-1/4 in
j Minimum Dimensions
1-1/4 in
k1 Drill7 Dimensions
0.406 in
k1 Drill Dimensions
0.406 in
Material
Steel
Material Construction
Steel
Series
1938-61 Series
Thread Size
3/8-16

Product Questions & Answers (1)

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Question by: Dale T on Jul 19, 2025, 9:22 PM
Will this flange work for connecting some 3/4 inch pipes in my hydraulic system?
Answer by: Customer Support on Jul 21, 2025, 4:07 PM
Yes, this 12FSWT-12FF Flange is designed for connecting 3/4 inch pipes in hydraulic systems, making it suitable for mid-range hydraulic circuit connections where a secure, leak-resistant flange interface is required.

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