MIL-DTL-85110B(AS)
example which may justify a scheduled maintenance action. Where parts replacement is
considered necessary to preclude failure, service or wear tolerances for affected parts shall be
included on the contractor's drawings.
3.3.7.3 Personnel skill level. Organizational and intermediate level of maintenance personnel
shall not exceed a skill level E-6 as defined in NAVPERS 18068 (see 6.3), occupational field 5
for at least 95% of the maintenance tasks. A man of lower skill may assist in disassembly or
assembly.
3.3.8 Storage life. The RRHB hall have a storage life of not less than 36 months when
stored in an unheated warehouse using Level A packing condition as specified in the contract.
Storage life is the period for which the equipment may be kept in storage before installation and
still have the specified operational service life after installation without component or part
replacement, adjustment, or maintenance action.
3.3.9 Human engineering. In addition to complying with the human engineering
requirements of MIL-STD-1472, the RRHB design shall include, but not be limited to, the
following
a. The RRHB shall provide for installation and removal by no more than one crewman.
b. No degradation of crewman performance shall be allowed while installing and removing
the RRHB due to personnel wearing essential clothing required of the operating
environment.
c. The RRHB shall incorporate physical measures to preclude interchange of units or
components of same or similar form that are not in fact functionally interchangeable.
d. The RRHB shall incorporate physical measures to preclude improper mounting of units
or components.
3.4 Interchangeability. All parts having the same manufacturer's part number shall be
functionally and dimensionally interchangeable. The item identification and part number
requirements of AD-1350 shall govern the manufacturer's part numbers and changes thereto.
3.5 Marking. Each RRHB shall be marked for identification in accordance with MIL-STD-
130.
3.5.1 Identification plates. Each RRHB shall bear a metal plate in accordance with
MIL-P-15024, Type A, G, or H on which a serial number, part number, contract number, and
manufacturer's code are marked. The plate shall provide sufficient blank surface to permit the
marking of symbols to record the number of inspection and overhaul cycles and accessory
changes incorporated.
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