NPFC - FED-STD-H28/1
SCREW-THREAD STANDARDS FOR FEDERAL SERVICES SECTION 1 NOMENCLATURE, DEFINITIONS AND LETTER SYMBOLS FOR SCREW THREADS
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Organization: | NPFC |
Publication Date: | 21 April 2020 |
Status: | active |
Page Count: | 4 |
scope:
This section establishes uniform practices with regard to screw thread nomenclature and letter symbols for designating characteristics of screw threads. These are for use on drawings, in tables of dimensions which set forth dimensional standards and in other records, and for expressing mathematical relationships.
Document History

FED-STD-H28/1
April 21, 2020
SCREW-THREAD STANDARDS FOR FEDERAL SERVICES SECTION 1 NOMENCLATURE, DEFINITIONS AND LETTER SYMBOLS FOR SCREW THREADS
This section establishes uniform practices with regard to screw thread nomenclature and letter symbols for designating characteristics of screw threads. These are for use on drawings, in tables of...

September 12, 2019
Screw-Thread Standards for Federal Services Section 1 Nomenclature, Definitions and Letter Symbols for Screw Threads
A description is not available for this item.

September 12, 1990
SCREW-THREAD STANDARDS FOR FEDERAL SERVICES SECTION 1 NOMENCLATURE, DEFINITIONS AND LETTER SYMBOLS FOR SCREW THREADS
A description is not available for this item.

August 28, 1985
SCREW-THREAD STANDARDS FOR FEDERAL SERVICES SECTION 1 NOMENCLATURE, DEFINITIONS AND LETTER SYMBOLS FOR SCREW THREADS
This section establishes uniform practices with regard to screw thread nomenclature and letter symbols for designating characteristics of screw threads. These are for use on drawings, in tables of...

March 31, 1978
SCREW-THREAD STANDARDS FOR FEDERAL SERVICES SECTION 1 NOMENCLATURE, DEFINITIONS AND LETTER SYMBOLS FOR SCREW THREADS
GENERAL
The purpose of this section is to establish 'uniform practices with regard to: (1) Screw-thread nomenclature, and (2) letter symbols for designating dimensions of screw threads for use on...