MIL-W-50991 (MU)
conforms to the requirements of the contract and submit a record
of this inspection with the sample, including statements of
findings, certificates of conformance for materials (see 4.1.1).
A sample containing known defects will not be submitted unless
specifically authorized by the contracting officer. A first ar-
ticle sample, or portion thereof, as directed by the contracting
officer, shall also be submitted whenever there is a lapse in
production for a period in excess of 90 days or whenever a change
occurs in manufacturing, material used, drawing or specification
such as to significantly affect product uniformity as determined
by the Government.
4.2.2 Inspections to be Performed. - Assemblies and compon-
ents will be subjected by the Government to any or all of the
examinations or tests specified in this specification and any or
all requirements of the drawings.
4.2.3 Rejection. - If any assembly or component fails to com-
ply with any of the requirements and inspections, the first ar-
ticle sample shall be rejected. The Government reserves the
right to terminate its inspection upon any failure of an assembly
or component in the sample to comply with any of the stated re-
quirements.
In the event of rejection, the Government reserves
the right to require the contractor to take corrective action
and/or submit a new first article sample or portion thereof. Until
a first article sample is accepted the contractor is, in no way
authorized by the Government to initiate regular production unless
directed by the contracting officer.
4.3
Inspection Provisions for Production.
4.3.1 Lot Formation. - The term "inspection Lot" as used
throughout this specification is defined as an essentially homo-
geneous collection of units or product from which a representative
sample is drawn and inspected to determine conformance of the lot
with applicable requirements. The sample selected shall represent
only that quantity of units from which the sample was drawn and
shall not be construed to represent any prior or subsequent quan-
tities presented for Inspection. Homogeneity shall be considered
to exist provided the inspection lot has been produced by one
manufacturer, in one unchanged process, in accordance with the
same drawing, same drawing revision, same specification and same
specification revision and complies with the provisions for sub-
mission of product as specified in MIL-STD-105. Changes to the
process, specification or drawing not affecting safety, perfor-
mance, interchangeability, or storage, as determined by the
Government, shall not be deemed to alter the homogeneity of the
.
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