QC/T 638-2023 Sealing washer
1 Scope
This document specifies the types, dimensions, technical requirements, and product coding regarding sealing washers.
This document is applicable to the sealing between parts in oil-based piping systems on automobiles.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 90.1 Fasteners - Acceptance inspection
GB/T 90.2 Fasteners - Marking and packaging
GB/T 2040 Copper and copper alloy sheet
GB/T 3880.1 Wrought aluminium and aluminium alloy plates, sheets and strips for general engineering - Part 1: Technical conditions of delivery
GB/T 30512 Requirements for prohibited substances on automobiles
QB/T 2200 Mild steel paperboard
QC/T 326 Coding rules for automotive standardized parts
QC/T 625 Metallic coatings and conversion coatings for automobile
3 Terms and definitions
No terms or definitions are listed in this document.
4 Types and dimensions
The types and dimensions of sealing washers are specified in Figure 1 and Table 1.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Types and dimensions
5 Technical requirements
6 Product coding
