Requirements for materials used in the fabrication and processing of spaceflight hardware are as follows:
a. [MPR 7] Materials shall meet the worst-case useful-life requirements for the particular application.
The useful-life requirements include, but are not limited to, the following:
NOTE: Per section 4.1.6: The use of M&P that do not comply with the requirements of this NASA Technical Standard may be acceptable in the actual hardware applications. MUAs are required for all M&P that are technically acceptable but do not meet the requirements of this NASA Technical Standard, as implemented by the approved Materials and Processes Selection, Control, and Implementation Plan.
NASA-STD-6016B
- (1) Operational temperature limits.
- (2) Loads.
- (3) Contamination.
- (4) Life expectancy.
- (5) Moisture or other fluid media exposure.
- (6) Vehicle-related induced and natural space environments.
Experimental spaceflight hardware and other hardware that do not provide mission-critical functions may have no useful-life requirements, provided that the safety of the crew, the space vehicle, or launch vehicle are not compromised.
Properties to be considered in material selection include, but are not limited to, the following:
- (1) Mechanical properties.
- (2) Fracture toughness.
- (3) Flammability and offgassing characteristics.
- (4) Corrosion.
- (5) Stress corrosion.
- (6) Thermal and mechanical fatigue properties.
- (7) Glass-transition temperature.
- (8) Coefficient of thermal expansion mismatch.
- (9) Vacuum outgassing.
- (10) Fluids compatibility.
- (11) Microbial resistance.
- (12) Moisture resistance.
- (13) Fretting.
- (14) Galling.
- (15) Susceptibility to electrostatic discharge (ESD).
- (16) Susceptibility to contamination.
- b. [MPR 8] M&P used in interfacing GSE, test equipment, hardware processing equipment, hardware packaging, and hardware shipment shall be controlled to prevent damage to or contamination of spaceflight hardware.
The M&P controls in NASA-STD-5005 (Revision D or later), Standard for the Design and Fabrication of Ground Support Equipment, are acceptable for meeting this requirement for interfacing GSE hardware. NOTE: Per section 4.1.6: The use of M&P that do not comply with the requirements of this NASA Technical Standard may be acceptable in the actual hardware applications. MUAs are required for all M&P that are technically acceptable but do not meet the requirements of this NASA Technical Standard, as implemented by the approved Materials and Processes Selection, Control, and Implementation Plan.
NASA-STD-6016B NOTE: Per section 4.1.6: The use of M&P that do not comply with the requirements of this NASA Technical Standard may be acceptable in the actual hardware applications. MUAs are required for all M&P that are technically acceptable but do not meet the requirements of this NASA Technical Standard, as implemented by the approved Materials and Processes Selection, Control, and Implementation Plan.
22 of 155 (1) Operational temperature limits. (2) Loads. (3) Contamination. (4) Life expectancy. (5) Moisture or other fluid media exposure. (6) Vehicle-related induced and natural space environments. Experimental spaceflight hardware and other hardware that do not provide mission-critical functions may have no useful-life requirements, provided that the safety of the crew, the space vehicle, or launch vehicle are not compromised. Properties to be considered in material selection include, but are not limited to, the following:
(1) Mechanical properties. (2) Fracture toughness. (3) Flammability and offgassing characteristics. (4) Corrosion. (5) Stress corrosion. (6) Thermal and mechanical fatigue properties. (7) Glass-transition temperature. (8) Coefficient of thermal expansion mismatch. (9) Vacuum outgassing. (10) Fluids compatibility. (11) Microbial resistance. (12) Moisture resistance. (13) Fretting. (14) Galling. (15) Susceptibility to electrostatic discharge (ESD). (16) Susceptibility to contamination.
b. [MPR 8] M&P used in interfacing GSE, test equipment, hardware processing equipment, hardware packaging, and hardware shipment shall be controlled to prevent damage to or contamination of spaceflight hardware.
The M&P controls in NASA-STD-5005 (Revision D or later), Standard for the Design and Fabrication of Ground Support Equipment, are acceptable for meeting this requirement for interfacing GSE hardware.