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MET SEAL to Quick Seal Adapters, MET-SEAL to Swagelok® Adapters

304 / 316 Stainless Steel Construction

Ideal for inserting gas tubes

Bakeable to 160° C

Repeatable leak tight seals

MET-SEAL Flange to Quick Seal Adapter

PART NUMBER	TUBE OD	NOMINAL FLANGE OD	A
MSA133-QS06	.06	1.33	1.31
MSA133-QS12	.12	1.33	1.31
MSA133-QS18	.18	1.33	1.31
MSA133-QS25	.25	1.33	1.31
MSA133-QS31	.31	1.33	1.31
MSA133-QS37	.37	1.33	1.31
MSA133-QS50	.50	1.33	1.37
MSA275-QS06	.06	2.74	1.31
MSA275-QS12	.12	2.74	1.31
MSA275-QS18	.18	2.74	1.31
MSA275-QS25	.25	2.74	1.31
MSA275-QS31	.31	2.74	1.31
MSA275-QS37	.37	2.74	1.31
MSA275-QS50	.50	2.74	1.37
MSA275-QS62	.62	2.74	1.50
MSA275-QS75	.75	2.74	1.62
MSA275-QS87	.87	2.74	1.75
MSA275-QS100	1.00	2.74	1.81
MSA275-QS112	1.12	2.74	2.00
MSA275-QS125	1.25	2.74	2.46
MSA275-QS137	1.37	2.74	2.58
MSA275-QS150	1.50	2.74	2.75

MET-SEAL Flange to Swagelok® Adapter

PART NUMBER	TUBE OD	NOMINAL FLANGE OD	A
MSA133-SW25	.25	1.33	1.64
MSA133-SW50	.50	1.33	1.87
MSA275-SW25	.25	2.74	1.86
MSA275-SW50	.50	2.74	2.09
MSA275-SW75	.75	2.74	2.74
MSA275-SW100	1.00	2.74	2.83

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.