MIL-PRF-49175C(CR)
6.2 Acquisition Requirements.
Procurement documents should specify the
following:
a.
Title, number, and date of this specification.
b.
Issue of DoDISS to be cited in the solicitation
and if required,
the specific issue of individual documents referenced.
c.
Packaging requirements (see 5.1).
d.
Group B and Group C inspection sample sizes should be established
based on cumulative totals of concurrent contracts.
6.3
Definitions.
6.3.1 Damage. Breakage, loosening, shifting, evidence of corrosion, or
failure of any finish, hardware, connection or component; and any degradation of
cooler performance to values less than specified herein.
6.3.2 Lower mean time to failure. The term "Lower" is used to define
that value which is the least operational capability and/or the maximum
operating and support cost burden the army can tolerate and accept. This
distinction is made to aid the system designer in allocating reliability
characteristics of the device.
6.4 Design note. Cooler input power will increase when tested with a
Dewar (0.4 WHL) from 50 w to 53 w at 23°C ambient temperature and from 55 w to
60 w at 71°C ambient temperature.
6.5
Subject Term (key word listings.
cooler
infrared detector,
heat sink
6.6
References.
USA Electronics Command Drawings
SM-D-969477
Cooler, Cryogenic Mechanical
HD-1033B/UA
SM-D-971500
Cooler, Cryogenic Mechanical
HD-1033C/UA
SM-D-773447
Outline Dimensions Cooler, Cryogenic
Mechanical
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