DEFSTAN 02-337(PT1)/1(2000) : 2000

TITLE PAGE
SCOPE
FOREWORD
Sponsorship
Conditions of Release
Related Documents
Health & Safety
CONTENTS
SECTION 1 GENERAL
          1.1 Dimensions
          1.2 Measurement
          1.3 Toroidal Sealing Ring Material
               1.3.1 Use of Nomenclature
               1.3.2 Commonly Used Materials
          Table 1.1 Material Types and General Description
          1.4 Approval of Material
               1.4.1 Approval Process
               1.4.2 Records of Material Approval
               1.4.3 Change of Material Procedure
               1.4.4 Age on Delivery
          1.5 Test Samples
               1.5.1 Sheet Dimensions
               1.5.2 Option for Cylindrical Buttons
               1.5.3 Vulcanizing of Sample Sheets
               1.5.4 Selection of Samples
          1.6 Test Requirements
               1.6.1 Demonstration of consistency and Type-Approval
                     Tests
               1.6.2 Common Test requirements
               1.6.3 Production Quality Tests and Routine Tests
               1.6.4 Test Tolerances and Test Requirements for
                     Specific Materials
          1.7 Relationship of Test Procedures
               1.7.1 Hardness
               1.7.2 Density
               1.7.3 Tensile Strength and Elongation at Break
               1.7.4 Compression Set
               1.7.5 Volume Change (Resistance to Fluids)
               1.7.6 Resistance to Low Temperature
               1.7.7 Adhesion to and Corrosion of Metals
               1.7.8 Dry Heat Air Ageing Test
          1.8 Enquiries for Service Fluid Specifications and Test
               Samples of Fluids
          1.9 Visual Inspection
          1.10 Acceptance Criteria
SECTION 2 SURFACE FINISH QUALITY ACCEPTANCE CRITERIA
          2.1 Mandatory Requirement for Quality Grade S
SECTION 3 NITRILE (MEDIUM) TOROIDAL SEALING O-RINGS - GENERAL
          ENGINEERING APPLICATIONS
          3.1 System Applications
          3.2 Temperature Range Qualification
          3.3 Pressures and the Introduction of Anti-Extrusion
          3.4 Preferred Range
          3.5 Material Approval and Test and Tolerance Requirements
          3.6 Production Quality Control Test
          Table 3.1 Production Quality Control Tests and Tolerances
          3.7 Routine Test of Finished O-Rings
          Table 3.2 Test Tolerances for Finished O-Rings
SECTION 4 NITRILE (HIGH) TOROIDAL SEALING O-RINGS - APPLICATIONS
          4.1 Qualification of Application
          4.2 Pressures and the Introduction of Anti-Extrusion
              Rings
          4.3 Preferred Range
          4.4 Material Approval and Test and Tolerance Requirements
          4.6 Production Quality Control Test
          4.7 Routine Test of Finished O-Rings
          Table 4.1 Production Quality Control Tests and Tolerances
SECTION 5 FLUOROCARBON TOROIDAL SEALING O-RINGS - APPLICATIONS
          5.1 Temperature Range
          5.2 Pressure and the Introduction of Anti-extrusion Rings
          5.3 Preferred Range
          5.4 Material Approval and Test and Tolerance Requirements
          5.5 Oxygen Ageing Test
          5.6 Production Quality Control Tests
          5.7 Colour Identification
          Table 5.1 Production Quality Control Tests and Tolerances
          5.8 Routine Test of Finished O-Rings
          Table 5.2 Test Tolerances for Finished O-Rings
SECTION 6 ANTI-EXTRUSION RINGS AND HOUSINGS (METRIC AND IMPERIAL)
SECTION 7 PACKAGING
          7.1 Mandatory Individual Packaging Requirements
ANNEX A RELATED DOCUMENTS
ANNEX B ABBREVIATIONS AND DEFINITIONS
ANNEX C PROCUREMENT CHECK LIST
ALPHABETICAL INDEX

Gives general information relative to manufacture on material approval and test requirement peculiar to the toroidal sealing rings pf a particular material composition. This standard is applicable to Surface Ships and Submarines, Ship and Submarine Systems and Equipment, Weapon systems and Equipment.