x
x
x
x
  0  
Key High Logo
CONTACT US
Key High Logo

NW Adapters: ASA to ISO-KF, ISO-KF to Compression Fitting, ISO-KF to ISO-MF

 

 

Adapter ASA flange to ISO-KF

  • Stainless steel type 304
  • With O-ring groove and Viton® O-ring

Adapter ASA flange to ISO-KF

Adapter ASA flange to ISO-KF

 
PART NUMBER ISO TO ASA FLANGE OD A B C
KSA-3416-1 NW 16 to 4-1/4" OD ASA 1.81 .62 4.25
KSA-3425-3 NW 25 to 4-1/4" OD ASA 1.81 .87 4.25
KSA-3440-4 NW 40 to 4-1/4" OD ASA 1.81 1.33 4.25
KSA-3416-2 NW 16 to 5" OD ASA 1.81 .62 5.0
KSA-3425-1 NW 25 to 5" OD ASA 1.81 .87 5.0
KSA-3440 NW 40 to 5" OD ASA 1.81 1.33 5.0
KSA-3450 NW 50 to 5" OD ASA 1.81 1.84 5.0
KSA-3416-3 NW 16 to 6" OD ASA 1.81 .62 6.0
KSA-3425-4 NW 25 to 6" OD ASA 1.81 .87 6.0
KSA-3440-1 NW 40 to 6" OD ASA 1.81 1.33 6.0
KSA-3450-1 NW 50 to 6" OD ASA 1.81 1.84 6.0
KSA-3416-4 NW 16 to 7-1/2" OD ASA 1.81 .62 7.5
KSA-3425-2 NW 25 to 7-1/2" OD ASA 1.81 .87 7.5
KSA-3440-2 NW 40 to 7-1/2" OD ASA 1.81 1.33 7.5
KSA-3450-2 NW 50 to 7-1/2" OD ASA 1.81 1.84 7.5
KSA-3416-5 NW 16 to 9" OD ASA 1.81 .62 9.0
KSA-3425-5 NW 25 to 9" OD ASA 1.81 .87 9.0
KSA-3440-3 NW 40 to 9" OD ASA 1.81 1.33 9.0
KSA-3450-3 NW 50 to 9" OD ASA 1.81 1.84 9.0

 

 

Adapter Tubing

  • Compression type to ISO-KF
  • Stainless steel type 304 body, Viton® O-ring

Adapter Tubing

Adapter Tubing

 
PART NUMBER ISO FOR TUBE OD A B C
KSA-3510 NW 10 1/2” 0.515 2.0 1.3
KSA-3516 NW 16 1/4” 0.265 1.3 THRU
KSA-3516-1 NW 16 1/2” 0.515 2.0 1.3
KSA-3516-2 NW 16 3/4” 0.765 2.2 1.6
KSA-3525 NW 25 1/2” 0.515 2.0 1.3
KSA-3525-1 NW 25 3/4” 0.765 2.3 1.6
KSA-3525-2 NW 25 1” 1.015 2.4 1.8
KSA-3540 NW 40 1/2” 0.515 2.3 1.3
KSA-3540-1 NW 40 3/4” 0.765 2.5 1.6
KSA-3540-2 NW 40 1” 1.015 2.8 1.8
KSA-3540-3 NW 40 1-1/8” 1.140 2.9 1.9
KSA-3540-4 NW 40 1-1/2” 1.510 3.3 2.5
KSA-3550 NW 50 3/4” 0.765 2.5 1.6
KSA-3550-1 NW 50 1” 1.015 2.8 1.8
KSA-3550-2 NW 50 1-1/8” 1.140 2.9 1.9
KSA-3550-3 NW 50 1-1/2” 1.510 3.4 2.5
KSA-3550-4 NW 50 2" 2.010 3.4 2.6

 

 

Adapter ISO-KF to ISO-MF

  • Stainless steel type 304

Adapter ISO-KF to ISO-MF

Adapter ISO-KF to ISO-MF

 
PART NUMBER ISO-MF TO ISO-KF A B
KSA-3616 NW 63 to NW 16 1.77 .62
KSA-3625 NW 63 to NW 25 1.77 .87
KSA-3640 NW 63 to NW 40 1.77 1.33
KSA-3650 NW 63 to NW 50 1.77 1.83
KSA-8580-3 NW 80 to NW 16 1.77 .62
KSA-8580-4 NW 80 to NW 25 1.77 .87
KSA-8580 NW 80 to NW 40 1.77 1.33
KSA-3650-1 NW 80 to NW 50 1.77 1.83
KSA-8516 NW 100 to NW 16 1.77 .62
KSA-3625-1 NW 100 to NW 25 1.77 .87
KSA-3650-3 NW 100 to NW 40 1.77 1.33
KSA-3650-2 NW 100 to NW 50 1.77 1.83

Product information is subject to change without notice. Product images may include options or accessories not included with the base model.

Precision Welded. Performance Proven.
For 50 years, Key High Vacuum Products, Inc. has been a trusted leader in precision-engineered stainless steel high vacuum weldments. With tens of thousands of unique weldments in use—from particle accelerators to industrial leak detectors—our expertise is proven across industries. Rooted in innovation, craftsmanship, and an unwavering commitment to customer satisfaction, we deliver high-quality, customized solutions that drive success. Every day, our team brings a unique blend of passion and precision, ensuring your goals are met with excellence—because your mission matters. Experience the Key High difference.
Key High Logo
Key High Vacuum Products, Inc.
36 Southern Boulevard, Nesconset, NY 11767
1-631-360-3970
© 2025 Key High Vacuum Products, Inc.