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NW Adapters: Aluminum Female Pipe 1/8" & 1/4”, MET-SEAL to ISO-KF, ASA to ISO-KF

 

 

Adapter Pipe

  • Stub tapped 1/8" female NPT
  • Aluminum 6061-T6

Adapter Pipe

Adapter Pipe

 
PART NUMBER ISO A B
KSA-2905 NW 10 0.62 0.50
KSA-2910 NW 10 0.62 0.75
KSA-2916 NW 16 0.62 0.75
KSA-2925 NW 25 0.88 0.75
KSA-2940 NW 40 1.25 1.00
KSA-2950 NW 50 1.75 1.00

 

 

Adapter Pipe

  • Stub tapped 1/4" female NPT
  • Aluminum 6061-T6

Adapter Pipe

Adapter Pipe

 
PART NUMBER ISO A B
KSA-3010 NW 10 0.62 0.75
KSA-3016 NW 16 0.62 0.75
KSA-3025 NW 25 0.88 0.75
KSA-3040 NW 40 1.25 1.00
KSA-3050 NW 50 1.75 1.00

 

 

Adapter MET-SEAL to ISO-KF

  • Stainless steel 304

Adapter MET-SEAL to ISO-KF

Adapter MET-SEAL to ISO-KF

 
PART NUMBER TUBE OD ISO A B
KSA-3210 1/2” NW 10 to Mini 1.57 0.40
KSA-3216 3/4” NW 16 to Mini 2.07 0.62
KSA-3216-1 3/4” NW 16 to 2-3/4" 1.78 0.62
KSA-3225 1” NW 25 to 2-3/4" 1.78 0.87
KSA-3240 1-1/2” NW 40 to 2-3/4" 1.78 1.33
KSA-3250 2” NW 50 to 4-1/2" 1.95 1.83

 

 

Adapter ASA flange to ISO-KF

  • Stainless steel type 304
  • Without O-ring groove

Adapter ASA flange to ISO-KF

Adapter ASA flange to ISO-KF

 
PART NUMBER ISO TO ASA FLANGE OD A B C
KSA-3316-1 NW 16 to 4-1/4" OD ASA 1.81 .62 4.25
KSA-3325-3 NW 25 to 4-1/4" OD ASA 1.81 .87 4.25
KSA-3340-4 NW 40 to 4-1/4" OD ASA 1.81 1.33 4.25
KSA-3316-2 NW 16 to 5" OD ASA 1.81 .62 5.0
KSA-3325-1 NW 25 to 5" OD ASA 1.81 .87 5.0
KSA-3340 NW 40 to 5" OD ASA 1.81 1.33 5.0
KSA-3350 NW 50 to 5" OD ASA 1.81 1.84 5.0
KSA-3316-3 NW 16 to 6" OD ASA 1.81 .62 6.0
KSA-3325-4 NW 25 to 6" OD ASA 1.81 .87 6.0
KSA-3340-1 NW 40 to 6" OD ASA 1.81 1.33 6.0
KSA-3350-1 NW 50 to 6" OD ASA 1.81 1.84 6.0
KSA-3316-4 NW 16 to 7-1/2" OD ASA 1.81 .62 7.5
KSA-3325-2 NW 25 to 7-1/2" OD ASA 1.81 .87 7.5
KSA-3340-2 NW 40 to 7-1/2" OD ASA 1.81 1.33 7.5
KSA-3350-2 NW 50 to 7-1/2" OD ASA 1.81 1.84 7.5
KSA-3316-5 NW 16 to 9" OD ASA 1.81 .62 9.0
KSA-3325-5 NW 25 to 9" OD ASA 1.81 .87 9.0
KSA-3340-3 NW 40 to 9" OD ASA 1.81 1.33 9.0
KSA-3350-3 NW 50 to 9" OD ASA 1.81 1.84 9.0

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

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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.
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