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|  MIL-S-777B(MU)
of sight parallel to the open sight within three degrees (3") which passes
through the partial reflector 1.250.25 inch above the top surface of Body
Assembly 7642128. This requirement shall also be met at four angular
position 905 apart on a 0.750.06 inch radius circle concentric to the
line of sight.
3.5.4 Focus shift.- The focus shift between vertical and horizontal
reticle image lines shall not exceed 0.25 diopter when viewing along the
line of sight defined in 3.5.3.
3.5.5 Reticle position.- With the mounting axis of the sight in a
vertical position, the image of the vertical reticle line shall be vertical
within an angle subtended by a two (2) mil block at one end of the reticle
line while the other end is in coincident with the respective target
reference line.
3.5.6 Optical component defects.- There shall be no visual evidence
of fracture or adhesive separation on optical components of the sight.
3.5.7 Optical component cleanliness.- There shall be no visual evidence
of grease, fingerprints, or condensates on optical elements. The partial
reflector and objective lens top surface shall not exhibit more than three
particals of dirt or foreign matter (classified as dirt), and the size of
any visible particle shall not exceed 0.1 inch.
QUALITY ASSURANCE PROVISIONS
4.
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4.1 Responsibility for inspection. Unless otherwise specified in
the contract or Purchase order, the supplier is responsible for the per-
formance of all inspection requirements as specified herein. Except as
otherwise specified, the supplier may utilize his own facilities Or any
commercial laboratory acceptable to the Government. The Government re-
serves 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-O-13830 and MIL-F-13926 form a part of the Quality
Assurance Provisions of this specification. Definitions of inspection
terms shall be listed in MIL-STD-109.
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4.2 First article (initial production) approval. The 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 tests shall consist of three (3) sights
plus three (3) each of all items covered by SQAP. The sample shall be
manufactured in the same manner, using the same materials, equipment,
processes, and procedures as used in regular production. All parts and
materials, including packaging and packing, shall be obtained from the
same source of supply as used in regular production.
4.2.1 Government testing.- When the Government is responsible for
conducting first article approval tests, the contractor, prior to submitting
the sample to the Govvernmet, shall inspect the sample to insure that it
conforms to all the requirements of the contract and submit a record of
this inspection with the sample, including certificates of conformance for
materials.
3
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