The 157771 is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: MATERIAL,STEEL CASE; BODY,CAST ALUMINUM;OD 3.500;H 4.500;2 PORT 0.500 NPT;POINTER AND DIAL ON FACE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6230-00-424-1871, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.