MIL-DTL-16377J(SH)
3.8.3.6 Parts. Unless otherwise specified in the applicable specification sheet, parts shall be painted light gray
in accordance with color number 16492 of FED-STD-595.
3.8.4 Finishing for windows and window assemblies for type I fixtures. Finishing for windows and window
assemblies for Type I fixtures shall be as specified in the applicable specification sheet and herein.
3.8.4.1 Windows. Surfaces of areas specified in the applicable specification sheet to be finished shall be
finished with air dry acrylic lacquer or an air dry water based paint as follows:
a. White finish: Highly diffusing white. Luminous transmittance of the finished surface shall be
60±10 percent.
b.
Black finish: Flat black. Surfaces shall be completely covered so that no pinholes or other blemishes exist.
c.
Frosted finish: Clear frosted. Luminous transmittance of the finished surface shall be 65±10 percent.
3.8.4.2 Louver assemblies. After surface preparation (see 3.8.3.2), the final finish for louver assemblies shall
be baking enamel or powder coat of a good commercial grade. The color shall be as follows:
a. White louvers: White in accordance with color number 17875 of FED-STD-595, having a reflectance
factor of not less than 80 percent.
b.
Black louvers: Dull camera black.
3.8.4.3 Antistatic coating. Antistatic coating shall be applied to all unfinished surfaces of the window
assemblies.
3.8.5 Stress relief.
3.8.5.1 Stress-corrosion cracking of metals. Stress-corrosion cracking characteristics are of primary concern in
material selection for marine service. High residual stresses in tension in certain materials can cause
stress-corrosion cracking when it is exposed to corrosive environment. Stress-corrosion cracking occurs under
tensile stresses which are induced into metal parts that are formed by bending or drawing or that are fabricated by
welding or torch welding. All susceptible metal parts under tensile stress shall be stress relieved to prevent
deterioration or failure. Method of stress relieving shall be manufacturer s choice as required by the technical data
furnished by the supplier of the raw material.
3.8.5.2 Plastics. Measures shall be taken in molding or processing plastics to ensure that stress build-up does
not occur or is satisfactorily treated to relieve these stresses to prevent deterioration or failure of a part or assembly.
The stress-relieving process shall be as required by the technical data furnished by the manufacturer of the raw
material.
3.8.5.3 Plastic windows for type I fixtures. Plastic windows for Type I fixtures that are formed to a specified
shape from sheet shall be annealed to relieve internal stresses after fabrication and finishing operations have been
completed. After annealing, there shall be very little or no evidence of stress when window assemblies are tested as
specified in 4.8.5. Very little stress is defined as that which does not interfere with the optical uniformity of the
window, or, in the case of window failure, stress which does not cause window cracking under the shock and
vibration tests. Method of annealing shall be the manufacturer s choice as prescribed by the technical data furnished
by the manufacturer of the raw material.
3.8.6 Welding. Welding and allied processes used in fabrication of fixtures and parts shall be based on the
American Welding Society Handbook (WHB) as a guide.
3.9 Designation and marking. Labels, identification, information and warning plates, instruction sheets, tags,
and markings for fixtures and parts shall be as specified in the applicable specification sheet and herein. Labels and
identification plates are not required with plastic fixtures or parts where the specified information is molded in place.
3.9.1 Labels. Labels shall be furnished as specified herein. Where advantageous, labels may be combined.
3.9.1.1 Material. The labels shall be of a grade of paper, fabric, or plastic, flatback, coated on one side with
pressure-sensitive adhesive. The texture of material shall permit flexibility and shall have a finish capable of
withstanding normal usage of handling and installation.
20
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business