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|  MIL-P-19131(SHIPS)
4.3.9.2 The reports specified in 4.3.9.1 shall be distributed as follows:
(a) Three to the bureau or agency concerned (to be forwarded
via the cognizant inspector).
(b) One for primary district inspection office.
(c) One for branch inspection office (If any).
(d) Two to each supervisor of shipbuilding concerned (one
for supervisor's files, the other for the shipbuilder).
(e) One to the Commander of each ship building yard con-
cerned, for Navy yard built ships, when specified in
the contract or order.
4.3.10 Shock tests. -
4.3.10.1 One complete pumping unit of each type, design and size on contract
or order shall be subjected to the high impact shock test of Specification MIL-S-901
as specified in 3.3.2. Class N-4 and Q-30 pumps which are attached to the units
served need not be shock tested separately from the units to which they are attached.
4.3.10.2 Shock tests will be conducted at the manufacturer's plant. Where
a manufacturer is unable to conduct these tests at his own plant, he may arrange
to have them conducted at a commercial laboratory, or Government laboratory
suitably equipped to conduct tests. Where shock tests are conducted at a Govern-
ment laboratory, copies of the applicable master drawings shall `accompany the
units.
4.3.10.3 All pump units shall be shock tested with drivers unless otherwise
approved by the bureau or agency concerned. Flexible coupled pumps shock tested
with one driver will not be required to be shock tested again when supplied with
a different driver. Prime movers are subject to shock tests in accordance with
the applicable equipment specifications.
4.3.10.4 Compliance with shock resistance requirements may be covered by
test of a similar unit subject to bureau or agency concerned approval.
4.3. 10.5 Equipment previously shock tested and accepted will not be required
to be retested for shock except when evidence of low shock resistance develops
in the units installed. The bureau or agency concerned will initiate action with the
manufacturer for correction of deficiencies, and may require shoe k tests at any
time.
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