![Ideal Vacuum | ASA 4.25 / ANSI 1 Blank Flange, with O-Ring Groove, Not Bored, Not Rotatable, 4.25 in OD, 3.125 in BCD, Four 0.625 in ID Bolt Holes, 304 Stainless Steel Ideal Vacuum | ASA 4.25 / ANSI 1 Blank Flange, with O-Ring Groove, Not Bored, Not Rotatable, 4.25 in OD, 3.125 in BCD, Four 0.625 in ID Bolt Holes, 304 Stainless Steel](https://www.idealvac.com/files/images/ASA-01-004_1.gif)
Ideal Vacuum | ASA 4.25 / ANSI 1 Blank Flange, with O-Ring Groove, Not Bored, Not Rotatable, 4.25 in OD, 3.125 in BCD, Four 0.625 in ID Bolt Holes, 304 Stainless Steel
![Flange Faces - Raised Face (RF), Flat Face (FF), Ring-Type Joint (RTJ), Male-and-Female (MF), Tongue-and-Groove (TG) Flange Faces - Raised Face (RF), Flat Face (FF), Ring-Type Joint (RTJ), Male-and-Female (MF), Tongue-and-Groove (TG)](https://www.wermac.org/flanges/flanges_img/flg_ff.jpg)
Flange Faces - Raised Face (RF), Flat Face (FF), Ring-Type Joint (RTJ), Male-and-Female (MF), Tongue-and-Groove (TG)
![Flange Faces - Raised Face (RF), Flat Face (FF), Ring-Type Joint (RTJ), Male-and-Female (MF), Tongue-and-Groove (TG) Flange Faces - Raised Face (RF), Flat Face (FF), Ring-Type Joint (RTJ), Male-and-Female (MF), Tongue-and-Groove (TG)](https://www.wermac.org/flanges/flanges_img/rtj1.jpg)
Flange Faces - Raised Face (RF), Flat Face (FF), Ring-Type Joint (RTJ), Male-and-Female (MF), Tongue-and-Groove (TG)
![ASME B16.4 Tdw Lock O Ring Flange - China Tdw Lock O Ring Flange, Lock O Ring Flange | Made-in-China.com ASME B16.4 Tdw Lock O Ring Flange - China Tdw Lock O Ring Flange, Lock O Ring Flange | Made-in-China.com](https://image.made-in-china.com/202f0j00uchrqNeyZQbz/ASME-B16-4-Tdw-Lock-O-Ring-Flange.webp)