MIL-T-14521E
Trestle dimensions.
TABLE I.
3.4 Construction. The trestles shall be constructed of parts and
materials free from defects that will prevent the trestles from meeting any of
the requirements of this specification.
3.4.1 Materials. Materials not specifically designated herein or in the
contract shall be of a quality commensurate with commercial practice within the
trestle manufacturing industry, shall be suitable for the intended purpose in
the design of the trestle and shall be free from defects which would adversely
affect the performance of the assembly. When dissimilar metals are used in
contact with each other, suitable protection against galvanic corrosion shall
be applied in accordance with MIL-STD-889.
3.4.2 Reclaimed materials. The manufacturer may use reclaimed materials
for fabricating new parts. Reclaimed materials shall be reprocessed.
remanufactured, or recycled in a manner that restores them to the same chemical
composition and physical properties as the materials originally selected for
use. Use of reclaimed parts as is or rebuilt from scrap or other used
equipment shall not be permitted.
3.4.3 Castings and forgings. Castings and forgings shall be free of
defects which affect serviceanility or performance, fins, scale, inclusions,
cold shuts, voids, cracks, thermal ruptures, laps, folds, and mismatching.
Defective castings and forgings shall not be reclaimed for use on this end
item.
3.4.4 Fastening devices. Fastening devices and methods shall be chosen to
serve the need while providing necessary adjustablility for service, maintenance
or repair, Fasteners shall be installed to prevent loss of tightness and shall
not loosen in service.
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