JIS B 2401-1-2012 errata 2013 PDF

Full title and description

St JIS B 2401-1-2012 errata 2013 — Japanese Industrial Standard JIS B 2401-1:2012, "O-rings — Part 1: O-rings", with the official errata published in 2013. This entry highlights the 2012 edition and the 2013 errata that corrects/clarifies items in the original publication.

Abstract

This part of JIS B 2401 specifies shapes, dimensions, appearance, materials and related requirements for O‑rings used in general machinery applications, including series for dynamic applications (P), static applications (G) and vacuum‑flange applications (V). The 2013 errata issues corrections to the 2012 text and figures to ensure dimensional and editorial accuracy.

General information

• Status: Current (2012 edition; errata issued 2013; standard was reaffirmed subsequently).
• Publication date: Original publication 21 March 2012; errata issued in 2013 (listed by the JSA in Aug 2013 / posted 1 Sep 2013).
• Publisher: Japanese Standards Association (JSA) — published as a Japanese Industrial Standard (JIS).
• ICS / categories: 23.100.60 (filters, seals and contamination of fluids); 83.140.50 (seals).
• Edition / version: Edition 2012 (JIS B 2401-1:2012) with Errata 2013 applied.
• Number of pages: Approximately 51 pages (some distributors list 51–52 pages depending on format).

Scope

Specifies the dimensional series, cross‑section sizes, tolerances, appearance and material/marking conventions for O‑rings intended for general industrial use. Part 1 addresses the O‑ring items themselves (types P, G and V); related parts of the JIS B 2401 series cover housing dimensions, anti‑extrusion rings and other complementary topics. The standard aligns with international practice for O‑ring specification.

Key topics and requirements

• Standardized O‑ring nominal cross‑sections and inside diameter series (dimension tables and tolerances).
• Appearance and dimensional tolerances for manufacturing acceptance.
• Material categories and references to rubber test methods and conditioning (cross‑references to relevant JIS K test methods).
• Designation of application types (P = dynamic, G = static, V = vacuum flange) and recommended use cases.
• Notes and corrections introduced by the 2013 errata (clarifications to figures, tables and editorial items affecting dimensions/tolerances).

Typical use and users

Used by O‑ring manufacturers, component designers, sealing specialists, procurement and quality engineers, and testing laboratories that specify, procure or verify seals for hydraulic, pneumatic, vacuum and general machinery applications.

Related standards

Closely related documents include other parts of the JIS B 2401 series (e.g., JIS B 2401-2, -3, -4 of 2012) and international equivalents such as ISO 3601‑1. JIS K rubber test standards and JIS B 2408 (quality acceptance criteria) are commonly referenced alongside this part.

Keywords

O‑ring, seal, elastomer, cross‑section, tolerance, JIS B 2401, JSA, errata 2013, dynamic seal, static seal, vacuum flange.

FAQ

Q: What is this standard?

A: JIS B 2401-1:2012 is the Japanese Industrial Standard specifying O‑rings (Part 1). The entry referenced here includes the official errata issued in 2013 which corrects and clarifies items in the 2012 text.

Q: What does it cover?

A: It covers O‑ring shapes, nominal sizes, cross‑sections, tolerances, appearance and material/marking guidance for general industrial applications (series P, G and V). The errata adjusts specific entries (tables/figures/editorial items) from the 2012 edition.

Q: Who typically uses it?

A: Seal and O‑ring manufacturers, design engineers, procurement and quality control teams, and test laboratories specifying or verifying O‑rings for hydraulic, pneumatic, vacuum and general equipment.

Q: Is it current or superseded?

A: The edition is JIS B 2401-1:2012 with an official errata issued in 2013; the 2012 edition was later reaffirmed (administrative review). For procurement or design use, treat the 2012 text together with the 2013 errata as the authoritative version unless the JSA publishes a later revision—always check the JSA/JIS catalogue for the latest status before finalizing specifications.

Q: Is it part of a series?

A: Yes — JIS B 2401 is a multi‑part series. Relevant companion parts published in 2012 include JIS B 2401-2 (housing dimensions), JIS B 2401-3 and JIS B 2401-4 (anti‑extrusion/back‑up rings). Use Part 1 together with the other parts for complete O‑ring design and installation guidance.

Q: What are the key keywords?

A: O‑ring, seal, JIS B 2401, elastomer, cross‑section, tolerance, dynamic (P), static (G), vacuum (V), errata 2013.