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| MIL-S-26688(USAF)
3.6.1 METHODS. - Riveting or welding may be used for assembly
of componant parts fabricated of metals which are suitable for this
type of construction. Fittings and joints which will require removal
for disassembly of the component parts of the seat shall be bolted.
3.6.2 PROJECTIONS. -The interior and exterior surfaces of the
seat shall be free from projections which could catch or damage the
clothing, or scratch the hands of the occupant as he moves his arms
about the sides of the seat.
3.7 INTERCHANGEABILITY.-All parts having the same manufacturer's
part number shall be functionally and dimensionally inchangeable.
The drawing number requirements of MIL-D-5028 shall govern changes in
the manufacturer's part numbers.
3.8 WEIGHT.- The completed seat, including foot rests and food
trays, shall not exceed the following:
Type I - 66 pounds
Type II - 95 pounds
3.9 COLOR.- The color of the normally exposed seat structure,
other than the foldable legs, when constructed of aluminum shall be
specified by the procuring activity. Aluminum legs shall be color
anodized or anodized in accordance with Specification MIL-A-8625.
The color shall be specified by the procuring activity.
3.10 FINISH.- Aluminumt alloy parts shall be anodically treated
in accordance with MIL-A-8625. Magnesium alloy parts shall be
treated in accordance with Specification MIL-M-3171. Noncorrosion
resistant steel parts shall be cadmium plated in accordance with
Specification QQ-P-416, or zinc plated in accordance with Specifica-
tion QQ-Z-325. The paint shall consist of one thin coat of' zinc
chromate primer conforming to Specification MIL-P-6889, followed by
two coats of aircraft lacquer conforming to specification MIL-L-6805.
3.11 IDENTIFICATION OF PRODUCT. - Equipment, assemblies, and
parts shall be marked for identification in accordance with MIL-STD-130.
3.12 WORKMANSHIP. - The seat including all parts and accessories
shall be constructed and finished in e thoroughly workmanlike manner.
Particular attention shall be given to neatness and thoroughness of
welding, riveting, machine-screw assemblies, painting, and freedom
of parts from burrs and sharp edges.
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