GOST 30893.2-2002 PDF

Full title and description

GOST 30893.2-2002 — Basic norms of interchangeability. General tolerances. Tolerances of form and position for features without individual tolerance indications. This standard defines general requirements for form and position tolerances applied when individual tolerance indications are not specified on engineering drawings, as part of the GOST basic norms of interchangeability series.

Abstract

This standard establishes general tolerances of form (for example: straightness, flatness, circularity) and position (for example: location, concentricity, symmetry) applicable to features on mechanical parts when no individual tolerance indications are given. It is intended to ensure interchangeability and to provide default tolerance values and rules to be used by designers, manufacturers and inspection personnel.

General information

• Status: Active / in force (acting national/interstate standard).
• Publication date: Designation year 2002; official publication/effective date recorded as 01 Jan 2004.
• Publisher: Issued as a GOST (interstate) standard published through national standards publishing channels (commonly distributed via GOST/EASC publication services and commercial standards vendors).
• ICS / categories: 17.040.10 — Metrology and measurement; linear and angular measurements; limits and fits.
• Edition / version: GOST 30893.2-2002 (first edition corresponding to the 2002 designation).
• Number of pages: 11 pages (standard text length as published).

Scope

Applies to mechanical engineering drawings and related documentation where features have no individual tolerance callouts. Sets out default tolerances and the rules for their application to form and position characteristics to support interchangeability, manufacturing and quality control across enterprises that adopt GOST interchangeability norms.

Key topics and requirements

• Default/general tolerances for form (straightness, flatness, circularity, cylindricity, etc.).
• Default/general tolerances for position (location, concentricity, coaxiality, symmetry, runout-related characteristics).
• Rules for applying tolerance values to features when individual tolerances are absent on drawings.
• Relationship to other interchangeability and tolerancing standards (references to related GOSTs and established measurement practices).
• Practical guidance for designers and inspectors to ensure parts meet interchangeability requirements without individual tolerance specifications.

Typical use and users

Used by mechanical designers, draftsmen, manufacturing engineers, quality control and inspection personnel, technical standardization bodies and training organizations in industries that follow GOST/Interstate standards (machine building, tooling, repair workshops and suppliers). It is used where default tolerances speed up routine drawing work and ensure consistent acceptance criteria across suppliers.

Related standards

Closely related to other GOST documents in the "Basic norms of interchangeability" series, notably GOST 30893.1-2002 (limit deviations for linear and angular dimensions) and a number of older GOSTs on tolerances and fits. The standard replaces or updates provisions from earlier documents such as GOST 25069-81 and references other normative documents including GOST 25346-89 and related drawing and metrology standards.

Keywords

interchangeability, general tolerances, form tolerances, position tolerances, limits and fits, GOST 30893 series, mechanical drawings, tolerance rules

FAQ

Q: What is this standard?

A: GOST 30893.2-2002 is a GOST (interstate) standard that sets default/general tolerances of form and position for features on mechanical parts when individual tolerance indications are not provided on drawings.

Q: What does it cover?

A: It covers rules and default values for tolerances of form (straightness, flatness, circularity, etc.) and position (location, concentricity, symmetry, etc.), and how to apply those tolerances to drawings and acceptance criteria.

Q: Who typically uses it?

A: Mechanical designers, drafting and engineering offices, manufacturers, inspection and quality departments, and standards bodies in organizations that adopt GOST/Interstate technical regulations.

Q: Is it current or superseded?

A: As of available bibliographic records it is listed as an active/acting standard (published with a 2002 designation and effective publication noted in official records as 01 Jan 2004). Users should confirm the status with their national standards body before application.

Q: Is it part of a series?

A: Yes — it is part of the GOST 30893 series of basic norms of interchangeability (for example GOST 30893.1-2002 covers limit deviations for linear and angular dimensions).

Q: What are the key keywords?

A: Interchangeability, general tolerances, form tolerance, position tolerance, limits and fits, mechanical drawings.