GOST 18829-2017 PDF

Full title and description

GOST 18829-2017 — "Кольца резиновые уплотнительные круглого сечения для гидравлических и пневматических устройств. Технические условия" (Rubber o-ring seals for hydraulic and pneumatic equipment. Specifications). This interstate (GOST) standard establishes technical requirements, marking, acceptance rules, testing and service-life provisions for rubber O‑ring seals used in hydraulic, pneumatic, fuel and lubricating systems.

Abstract

Sets mandatory specifications for circular‑section rubber sealing rings (O‑rings) intended for fixed and dynamic joints in hydraulic and pneumatic equipment: dimensional series, material (rubber) groups and properties, allowable temperature and pressure ranges, testing and quality control methods, marking, packaging and rules for acceptance and service‑life determination. The standard supersedes GOST 18829-73 and includes later editorial changes and amendments.

General information

• Status: In force (interstate standard adopted as a national standard of the Russian Federation).
• Publication date: Approved by Rosstandart Order No. 496‑ст on 6 June 2017; date of entry into force (introduction) 1 July 2018.
• Publisher: Introduced and published under the authority of the Federal Agency for Technical Regulation and Metrology (Rosstandart) / Interstate system of standards (GOST).
• ICS / categories: 83.140.99 (Rubber and plastic products; other rubber and plastic products).
• Edition / version: GOST 18829-2017 (replaces GOST 18829-73); includes at least one amendment introduced by Rosstandart (Amendment N1, editorial updates noted 14 January 2021).
• Number of pages: 26 pages (standard text as published in standard catalogs).

Scope

Applies to rubber O‑ring seals of circular cross‑section used in hydraulic, pneumatic, fuel and lubricating systems for fixed and dynamic connections. Depending on rubber group and construction, it covers operation over a wide temperature range and establishes maximum recommended pressures (examples in the standard include use in fixed connections up to about 50 MPa and in dynamic/mobile connections up to about 32 MPa for mineral oils and similar media; different limits for compressed air and other media are specified by rubber group and application). The document also sets climatic designations, requirements for service life, and environmental/safety provisions.

Key topics and requirements

• Definition of designation and conditional marking of O‑rings (type, nominal sizes and cross‑section notation).
• Classification by rubber groups and specified material properties (physical‑mechanical characteristics, hardness, low‑temperature behavior, aging resistance).
• Dimensional series and tolerances for nominal diameters and cross‑sections; permitted deviations and groups of accuracy.
• Operational limits: recommended temperature ranges by rubber group, pressure limits for fixed and dynamic joints, and suitability for various media (mineral oils, fuels, emulsions, water, compressed air).
• Testing and quality control: incoming/production acceptance, periodic and type testing regimes, tests for hardness, tensile strength, compression set, swelling, low‑temperature properties and reliability tests per referenced methods (including references to ГОСТ test methods and reliability standards such as ГОСТ 27.410).
• Marking, labeling and packaging requirements (including information in a supplied passport/documentation for batches: designation, batch number, quantity, manufacture date, conformity statement and control stamps).
• Rules for acceptance, lot definition, sampling plans and corrective measures; provisions for establishing service life and resource (operational life) of rings for specific applications.
• Environmental, safety and disposal notes (classification of waste and recommended handling in line with referenced safety standards).

Typical use and users

Used by manufacturers of rubber sealing rings/O‑rings, OEMs of hydraulic and pneumatic equipment, maintenance and repair organizations, procurement/specification engineers, test laboratories and conformity assessment bodies in industries such as heavy machinery, automotive, aerospace ground equipment, oil & gas, maritime systems and general industrial hydraulics/pneumatics.

Related standards

Replaces GOST 18829-73. Cross‑references and normative documents cited in the text include industry and test standards such as GOST 27.410 (reliability testing), GOST 15150 (climatic designations), GOST 14192 (packaging/marking), plus multiple GOST methods for physical and chemical testing of rubber and associated materials. Users should consult those referenced GOSTs when applying test methods and acceptance criteria.

Keywords

GOST 18829-2017, O‑ring, rubber sealing ring, hydraulic seals, pneumatic seals, technical conditions, dimensions, rubber groups, pressure ratings, service life, marking, testing, acceptance.

FAQ

Q: What is this standard?

A: An interstate (GOST) technical standard that specifies requirements for circular‑section rubber O‑ring seals used in hydraulic, pneumatic and related equipment. It was approved by Rosstandart on 6 June 2017 and introduced into force on 1 July 2018.

Q: What does it cover?

A: Dimensions, material (rubber) groupings and properties, allowable operating temperatures and pressures by application type, testing and acceptance methods, marking and packaging, and rules for establishing service life and reliability of O‑rings in the covered media.

Q: Who typically uses it?

A: Manufacturers of O‑rings, designers and OEMs of hydraulic and pneumatic equipment, quality and testing laboratories, procurement specialists and maintenance teams who need to ensure components meet recognized technical and safety requirements.

Q: Is it current or superseded?

A: GOST 18829-2017 is the current interstate replacement for GOST 18829-73. It has at least one recorded amendment/edition update (amendment introduced by Rosstandart, with editorial changes noted in January 2021); users should verify whether newer amendments or national adoptions apply in their jurisdiction before finalizing specifications.

Q: Is it part of a series?

A: It is a standalone GOST for circular‑section rubber sealing rings but references and works together with other GOSTs for material tests, climatic categories and reliability (for example, GOST 27.410, GOST 15150 and various rubber testing GOSTs). These referenced standards form the normative framework for testing and applying the requirements in GOST 18829-2017.

Q: What are the key keywords?

A: O‑ring, rubber seal, hydraulic seal, pneumatic seal, specifications, GOST, dimensional series, rubber groups, pressure rating, service life, marking, testing.