Bolts and Screws, Steel, Low Alloy, Heat Resistant Hardened and Tempered, Roll Threaded

Standard:
Revised:
  • 2009-07-10
 
  • HISTORICAL Access the latest revision: AS7455B
Publisher:
  • SAE International
Pages:
21
Scope:

This procurement specification covers aircraft quality bolts and screws made from a low alloy, heat resistant steel of the type identified under the Unified Numbering System as UNS K14675. The following specification designations and their properities are covered: AS7455 ~ 140 000 to 195 000 psi ultimate tensile strength at room temperture; AS7455-1 ~ 140 000 to 195 000 psi ultimate tensile strength at room temperature, nickel-cadmium plated.

Primarily for aerospace propulsion system applications where high strength at temperatures up to approximately 900 °F is required and the part is protected against corrosion.

Rationale:

Add additional definitions to para 2.2. Update para 3.6 by adding “two to” three threads in agreement with NASM1312-8 test methodology. Added para 4.2 and completely revised para 4.4.3, 4.3.5 and TABLES 4, 5, 6 and 7 by removing sampling in accordance with MIL-STD-105 (AQL) and replacing with accept on “zero”. General updating for SAE requirements for obsolete specifications and standards.

History:
Standard Published Revision Status
AS7455B 2016-05-24 Latest Revised
2009-07-10 Historical Revised
2004-07-27 Historical Reaffirmed
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