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|  MIL-P-17639F(SH)
(f)
Calculations demonstrating that the gland leak-off collection
and drainage features meet the flow capacity requirement of
3.3.8.9.1.
Calculations demonstrating that assemblies that use springs,
(g)
such as some mechanical seals and labyrinth seals, shall
function as intended given the tolerances on the spring and
the tolerances of the parts that restrain the two ends of the
spring. As a minimum, a tolerance stackup analysis shall be
provided calculating the minimum and maximum valves for working
length and the minimum and maximum spring force (see 3.6.1.2.3.3)
at those lengths. The basis for believing the assembly will
perform properly with those spring forces shall be stated.
(h)
For all submarine sea water pumps, calculations demonstrating that
the shaft pressure breakdown device meets the maximum flow
requirements of 3.3.8.9 for worst case tolerances shall be pro-
vided. Also, a curve shall be provided, calculated in the same
manner, showing how the flow rate increases as the critical
clearances increase. This curve shall extend out to a flowrate
of 100 gal/rein and shall be for Navy use during shop life.
3.9 Design record. A design record shall be submitted to the design review
agency concerned in accordance with the data ordering document included in the
contract or order (see 6.2.2). This record shall be completed except as noted in
3.9.2, and forwarded prior to unit delivery or at a time agreed to by the design
review agency.
3.9.1 The design record shall contain the following:
(a) The design and calculations which were submitted for manufac-
turing release, except as modified to resolve comments at time
of manufacturing release.
(b) Revised calculations in those areas of design where the original
calculations must be modified as a result of an approved design
change.
(c) Approved design evaluation test reports, including resolution
of comments, the approval action and any special testing which
may be performed to verify new design features.
3.9.2 Changes in pump design approved subsequent to issue of the design
record when required, or approved deviations in the design evaluation test unit
from the design described in the design record, shall be submitted as as adden-
dum to the design record. The addendum shall include applicable revised drawings.
3.10 Technical repair standard. A technical repair standard (TRS) shall
be provided upon initial introduction of a new equipment or introduction of an
equipment that has an approved TRS if major or minor configuration changes have
been approved that would effect the adequacy of the standard for use in new
equipment repairs (see 6.2.2).
3.10.1 TRS technical content shall include sufficient technical details
to enable a repair, maintenance, or overhaul activity to restore the equipment's
dimensions, clearances, and tolerances such that the equipment is capable of
performing its function as originally specified and is capable of being logisti-
cally supported by the DoD logistics support system.
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