3.7 Illumination. The level vial bubble graduation lines and
two counters shall be clearly distinguishable when observed in
ambient light conditions ranging from dusk into darkness with and
without the use of a 50% neutral density filter.
3.8 Interchangeability. Interchangeability shall be verified
by the insertion, seating, securing and subsequent removal of
maximum fit gage on the mount's top surface.
QUALITY ASSURANCE PROVISIONS
4.1 Responsibility for inspection. Unless otherwise
specified in the contract or purchase order, the supplier is
responsible for the performance of all inspection requirements as
specified herein. Except as otherwise specified, the supplier may
utilize his own facilities or any other facilities suitable for
the performance of the inspection requirements specified herein,
unless disapproved by the Government. The Government reserves the
right to perform any of the inspections set forth in the
specification where such inspections are deemed necessary to
assure supplies and services conform to prescribed requirements.
4.1.1 General provisions. The component and subassembly
inspection requirements of MIL-F-13926 form a part of the quality
assurance provisions of this specificaton. Definitions of
inspection terms shall be as listed in MIL-STD-109.
4.2 First article (initial production) approval.
requirement for first article approval and the responsibility
(Government or contractor) for first article testing shall be as
specified in the contract. The sample for first article approval
test shall consist of three (3) mounts plus three (3) each of all
items covered by SQAP. The sample shall be manufactured in the