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API Spec 7HU2 Errata 1Errata to Oilfield Hammer Unions, First EditionAmendment by American Petroleum Institute, 03/01/2022
API Spec 7HU2 Errata 1Errata to Oilfield Hammer Unions, First EditionAmendment by American Petroleum Institute, 03/01/2022
API Spec 7HU2Oilfield Hammer Unions, First Edition, Includes Errata 1 (2022)standard by American Petroleum Institute, 03/01/2022
API Spec 7HU2Oilfield Hammer Unions, First Edition, Includes Errata 1 (2022)standard by American Petroleum Institute, 03/01/2022
API Spec 7F ErrataErrata to Oil Field Chain and Sprockets, Eighth EditionAmendment by American Petroleum Institute, 05/01/2013
API Spec 7F (R2016)Oil Field Chain and Sprockets, Eighth Edition, Includes Erratastandard by American Petroleum Institute, 11/01/2010
API Spec 7FSpecification for Oil Field Chain and Sprockets, Seventh Editionstandard by American Petroleum Institute, 01/01/2003
API Spec 7B-11C (R2008)Specification for Internal-Combustion Reciprocating Engines for Oil Field Servicestandard by American Petroleum Institute, 11/01/1994
API Spec 7-2 ErrataErrata to Specification for Threading and Gauging of Rotary Shouldered Thread Connections, Second EditionAmendment by American Petroleum Institute, 08/01/2017
API Spec 7-2 Addendum 1Addendum 1 to Specification for Threading and Gauging of Rotary Shouldered Thread Connections, First Edition (previously covered in Spec 7)Amendment by American Petroleum Institute, 12/01/2010
API Spec 7-2 (R2015)Specification for Threading and Gauging of Rotary Shouldered Thread Connections, First Edition (previously covered in Spec 7), Includes Addendum 1 (December 2010)standard by American Petroleum Institute, 06/01/2008
API Spec 7-2Specification for Threading and Gauging of Rotary Shouldered Thread Connections, Second Edition, Includes Errata (2017)standard by American Petroleum Institute, 01/01/2017