MIL-DTL-81929C(AS)
l. Redesigned parts. If the design or material of a part is changed to the extent that
interchangeability or physical or functional performance is affected, the new part number
assigned in accordance with the contract drawing specification shall be listed. The
original part shall be omitted if not authorized for continued use. If the original part has
continued application, the application shall be indicated in the GAPL.
m. Selected electronic components. If a component board contains detail part(s) which can
be replaced from a selection of components of different values, the illustration shall show
one part. The GAPL shall list the basic part number without the specific value, e.g.,
"RCO7GF---J." If the selection is to be made after test, a note shall appear after the
description of the part, e.g., "/Value determined at test/."
n. Alternate parts. An alternate part is defined as a part that is used when a preferable part
is not available. Alternate parts shall be listed below the preferred part when assigned an
NIIN. The specific relationship shall be identified using the GAPL "DESCRIPTION"
and "USABLE ON CODE" columns.
o. Equivalent parts. An equivalent part is defined as a part that is used interchangeably with
one or more parts, none of which are preferable over the other. Equivalent parts shall be
listed below the preferred part when assigned an NIIN. The specific interchangeability
shall be identified using the GAPL "USABLE ON CODE" column.
p. Quick Engine Change Assembly (QECA). Following the breakdown of the QECA, the
part number and description of the Quick Engine Change Kit (QECK) shall be listed. All
QECK parts shall be illustrated, indexed, and identified in the GAPL description column
with the acronym "QEC".
q. Parts kits. When repair parts for the end item or for repairable units within the end item
are to be supplied in the form of kits, a part number shall be assigned to each kit in
accordance with contract drawing specification requirements.
(1) The kit(s) part numbers shall be placed last in the list of parts of the unit to which it
applies and at the same indentation as the unit to which it applies. The kit
components listed shall carry the appropriate kit SM&R code.
(2) Contents of the kit shall be listed at one indent below the kit description and shall
not be assigned index numbers. Part number, description, quantity per kit, and
SM&R code shall be included for each item in the kit.
(3) Lists of supplemental kits shall follow the list of original kits in the same manner as
prescribed herein.
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