标准编号:	GB/T 3103.3-2000
中文名称:	紧固件公差 平垫圈
英文名称:	Tolerances for fasteners - Plain washers
中标分类:	J13    紧固件
行业分类:	GB    国家标准
ICS分类:	21.060.30 21.060.30    垫圈、锁紧件 21.060.30
发布机构:	国家质量技术监督局
发布日期:	2000-9-26
实施日期:	2001-2-1
标准状态:	superseded
被新标准替代:	GB/T 3103.3-2020 紧固件公差 平垫圈
被替代日期:	2020-10-1
替代旧标准:	GB/T 3103.3-1982 紧固件公差 平垫圈
翻译语言:	英文
文件格式:	PDF
中文字符数:	5000 字
翻译价格(元):	240.0
交付时间:	付款后 1 个工作日

This standard is identical to international standard ISO 4759-3:2000 "Tolerances for Fasteners — Part 3: Plain Washers for Bolts, Screws and Nuts — Product Grades A and C". GB/T 3103 consists of the following parts, under the general title "Tolerances for Fasteners": — GB/T 3103.1-1982 Tolerances for Fasteners — Bolts, Screws and Nuts — GB/T 3103.2-1982 Tolerances for Fasteners — Bolts, Screws and Nuts for Fine Mechanics — GB/T 3103.3-2000 Tolerance for Fasteners — Plain Washers — GB/T 3103.4-1992 Tolerance for Fasteners — Components for Bolted Connections Made Mainly from Materials with a High Temperature Strength The Contents of ISO 4753-3 do not adopted in this standard and its text has been listed in Normative References (Chapter 2). This standard is the revision of GB/T 3103.3-1982, main modifications are as follows: a) The dimensional tolerance not specified in h1 of Grade C products (see 3.1); b) Supersedes "Thickness variation Δh" with "parallelism", and this index has no requirements on Grade C products (see 3.5.1); c) No requirements on the flatness of Grade C products (see 3.5.3); d) Appendix A is added. This standard supersedes GB/T 3103.3-1982 from the implementation date hereof. Appendix A in this standard is informative. This standard was proposed by State Bureau of Machine Building Industry. This standard is under the jurisdiction of National Technical Committee on Fasteners of Standardization Administration of China. This standard was drafted by the Academy of Machinery Science & Technology. Secretariat of National Technical Committee on Fasteners of Standardization Administration of China is in charge of the explanation of this standard.   ISO Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 4759-3 was prepared by Technical Committee ISO/TC 2, Fasteners. This third edition cancels and replaces the second edition (ISO 4759-3:1991), of which has been technically revised. ISO 4759 consists of the following parts, under the general title, Tolerances for fasteners: — Part 1: Bolts, screws, studs and nuts — Product grades A, B and C — Part 2: Bolts, screws and nuts with thread diameters from 1 up to 3 mm and product grade F, for fine mechanics — Part 3: Plain washers for bolts, screws and nuts — Product grades A and C Appendix A of this part of ISO 4759 is for information only. NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA 中华人民共和国国家标准 Tolerances for Fasteners — Plain Washers 紧固件公差 平垫圈 GB/T 3103.3-2000 idt ISO 4759-3:2000 Supersedes GB/T 3103.3-1982 1 Scope This standard specifies the tolerances for punched plain washers of product grades A and C, for use with bolts, screws and nuts of nominal thread diameters of from 1 mm to 150 mm inclusive. It is recommended that these tolerances also be used for non-standard washers. Note: The product grade refers to the quality of the product and to the size of the tolerances. Appendix A (informative) presents tolerances taken from GB/T 1800.2 and GB/T 1800.4. 2 Normative References The following standards contain provisions which, through reference in this text, constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and Parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. GB/T 1182-1996 Geometrical tolerancing — Generalities, definitions, symbols, indications on drawings (eqv ISO 1101:1983) GB/T 1800.2-1998 Limits and fits — Bases — Part 2: Basic rules of tolerances, deviations and fits (eqv ISO 286-1:1988) GB/T 1800.4-1999 Limits and fits — Tables of standard tolerance grades and limit deviations for holes and shafts (eqv ISO 286-2:1996) GB/T 5267-1985 Electroplated coatings on threaded fasteners GB/T 16671-1996 Geometrical tolerancing — Maximum material requirement, least material requirement and reciprocity requirement (eqv ISO 2692:1996) 3 Tolerances The tolerances for plain washers of product grades A and C are given in Table 1. Unless otherwise specified, the tolerances specified in this standard apply to washers prior to coating (GB/T 5267). Deviations from the tolerances specified in this standard are permitted in product standards only for valid technical reasons. In cases where there is a difference between the tolerance requirements in this standard and the product standard, the latter takes precedence. The tolerances of form and position are specified and indicated according to the definitions of GB/T 1182 and GB/T 16671.

前言 本标准等同采用国际标准ISO 4759-3：2000《紧固件公差 第3部分：螺栓、螺钉和螺母用平垫圈产品等级A和C级》。 GB/T 3103总的标题为：“紧固件公差”，包括以下部分： ——GB/T 3103.1-1982 紧固件公差 螺栓、螺钉和螺母 ——GB/T 3103.2-1982 紧固件公差 用于精密机械的螺栓、螺钉和螺母 ——GB/T 3103.3-2000 紧固件公差 平垫圈 ——GB/T 3103.4-1992 紧固件公差 耐热用螺纹连接副 本标准来采用ISO 4753-3所附的目录，其内容已列入引用标准（第2章）。 本标准是GB/T 3103.3-1982的修订本，主要修改如下： a）对C级产品未规定h1的尺寸公差（3.1条）； b）以“厚度不均匀度△h”代替“平行度”，并对C级产品不要求该项指标（3.5.1条）； c）对C级产品不要求平面度（3.5.3条）； d）增加附录A。 本标准自实施之日起，代替GB/T 3103.3-1982。 本标准的附录A是提示的附录。 本标准由国家机械工业局提出。 本标准由全国紧固件标准化技术委员会归口。 本标准由机械科学研究院负责起草。 本标准由全国紧固件标准化技术委员会秘书处负责解释。 ISO前言 ISO（国际标准化组织）是一个世界性的各国国家标准团体（ISO成员团体）的联合组织。国际标准的制定工作通常是通过ISO各个技术委员会进行的。每个成员团体如对某一技术委员会所进行的项目感兴趣时，也可参加该委员会。与ISO有关的政府的和非政府的国际组织也可参加此项工作。ISO与国际电工委员会（IEC）在电工标准化方面有着密切的联系。 经技术委员会采纳的国际标准草案，分发给所有成员团体进行投票表决。国际标准的正式出版需要至少75%的成员团体投票赞成。 国际标准ISO 4759-3由ISO/TC 2紧固件技术委员会制定。 第三版对第二版（ISO 4759-3:1991）进行了删改与补充，是技术性修订。 ISO 4759总名称为“紧固件公差”，包括以下部分： ——第1部分：螺栓、螺钉和螺母 产品等级为A、B和C ——第2部分：螺纹直径为1~3 mm、产品等级F、用于精密机械的螺栓、螺钉和螺母 ——第3部分：螺栓、螺钉和螺母用平垫圈 产品等级A和C ISO 4759本部分的附录A是提示的附录。 中华人民共和国国家标准 紧固件公差 平垫圈 Tolerances for fasteners-Plain washers GB/T 3103.3-2000 idt ISO 4759-3:2000 代替GB/T 3103.3-1982 1 范围 本标准规定了螺纹公称直径为1~150 mm的螺栓、螺钉和螺母用产品等级为A和C级冲压平垫圈的公差。 推荐非标准垫圈也采用这些公差。 注：产品等级由产品质量和公差大小确定。 附录A（提示的附录）摘自GB/T 1800.2和GB/T 1800.4。 2 引用标准 下列标准所包含的条文，通过在本标准中引用而构成为本标准的条文。本标准出版时，所示版本均为有效。所有标准都会被修订，使用本标准的各方应探讨使用下列标准最新版本的可能性。 GB/T 1182-1996 形状和位置公差 通则、定义、符号和图样表示法（eqv ISO 1101：1983） GB/T 1800.2-1998 极限与配合 基础 第2部分：公差、偏差和配合的基本规定（eqv ISO 286-1:1988） GB/T 1800.4-1999 极限与配合 标准公差等级和孔、轴的极限偏差表（eqv ISO 286-2:1996） GB/T 5267-1985 螺纹紧固件电镀层 GB/T 16671-1996 形状和位置公差 最大实体要求、最小实体要求和可逆要求（eqv ISO 2692:1996） 3 公差 产品等级A和C级的垫圈公差在表1中给出。 除非另有规定，本标准规定的公差适用于垫圈镀前尺寸（GB/T 5267）。 不符合本标准规定的公差，并有正当技术原因者，应在产品标准中规定。当本标准与产品标准规定的公差不同时，应以后者为准。 形状和位置公差的规定和表示方法符合GB/T 1182和GB/T 16671。 国家质量技术监督局2000-09-26批准 2001-02-01实施 表1 部位 公差 产品等级 A C 3.1通孔（冲压） 塌边 撕裂带 h mm d1 公差 h1 min h mm d1 公差 h≤4 h>4 H13 H14 0.5h 0.3h h≤4 h>4 H14 H15 塌边和撕裂带尚未规定，但将要提出 h1、塌边和撕裂带尚未规定，但将要提出 h1是在d1规定公差范围内孔的部分 3.2外径（冲压） 塌边 撕裂带 h mm d2 公差 d2 公差 h≤4 h>4 h14 h15 h16 h2、塌边和撕裂带尚未规定，但将要提出 h2是在d2规定公差范围的外径部分 3.3厚度 h h mm 公差 mm mm 公差 mm h≤0.5 0.550 2IT12 2IT13 d2≤50 d2>50 2IT15 2IT16 3.5.3平面度 注：公差t2与厚度h的公差系互为独立的公差 h mm t11） mm 不要求 非不锈钢 h≤0.5 0.5 ~ IT12 IT13 IT15 IT16 公差 - 3 0.1 0.14 0.4 0.6 3 6 0.12 0.18 0.48 0.75 6 10 0.15 0.22 0.58 0.9 10 18 0.18 0.27 0.7 1.1 18 30 0.21 0.33 0.84 1.3 30 50 0.25 0.39 1 1.6 50 80 0.3 0.46 1.2 1.9 80 120 0.35 0.54 1.4 2.2 120 180 0.4 0.63 1.6 2.5 180 250 0.46 0.72 1.85 2.9 表A2 轴的极限偏差 mm 公称直径 极限偏差 > ~ h14 h15 h16 - 3 0 -0.25 0 -0.4 0 -0.6 3 6 0 -0.3 0 -0.48 0 -0.75 6 10 0 -0.36 0 -0.58 0 -0.9 10 18 0 -0.43 0 -0.7 0 -1.1 18 30 0 -0.52 0 -0.84 0 -1.3 30 50 0 -0.62 0 -1 0 -1.6 50 80 0 -0.74 0 -1.2 0 -1.9 80 120 0 -0.87 0 -1.4 0 -2.2 120 180 0 -1 0 -1.6 0 -2.5 180 250 0 -1.15 0 -1.85 0 -2.9 表A3 孔的极限偏差 mm 公称直径 极限偏差 > ~ H13 H14 H15 - 3 +0.14 0 +0.25 0 +0.4 0 3 6 +0.18 0 +0.3 0 +0.48 0 6 10 +0.22 0 +0.36 0 +0.58 0 10 18 +0.27 0 -0.43 0 +0.7 0 18 30 +0.33 0 +0.52 0 +0.84 0 30 50 -0.39 0 +0.62 0 +1 0 50 80 +0.46 0 +0.74 0 +1.2 0 80 120 +0.54 0 +0.87 0 +1.4 0 120 180 +0.63 0 +1 0 +1.6 0 180 250 +0.72 0 +1.15 0 +1.85 0