initial issues or outfittings. Not subject to automatic
This manual lists repair parts and special tools required for
PE- Support equipment procured and stocked for initial
the performance of organizational maintenance of the PH-
issue or outfitting to specified maintenance repair
637A/PFP, PH-637B/PFP, and PH-637C/PFP. The PCCN
for the equipment is GRNADZ for all models.
PF- Support equipment which will not be stocked but
which will be centrally procured on demand.
This repair parts and special tools list is divided into the
PG-Item procured and stocked to provide for sustained
support for the life of the equipment. It is applied to
a. Prescribed Load Allowance (PLA) - Section II.
an item peculiar to the equipment which because of
probable discontinuance or shutdown of production
b. Repair Parts List - Section III. A list of repair parts
facilities would prove uneconomical to reproduce at a
authorized for the performance of maintenance at the
organizational level. This repair parts list is arranged in
KD- An item of depot overhaul/repair kit and not
purchased separately. Depot kit defined as a kit that
c. Special Tools, Test and Support Equipment -
provides items required at the time of overhaul or
Section IV. Not applicable.
d. Index - Federal Stock Number and Reference
KF- An item of a maintenance kit and not purchased
Number Cross-Reference to Figure and Item Number -
separately. Maintenance kit defined as a kit that
Section V. A list, in ascending numerical sequence, of all
provides an item that can be replaced at
Federal stock numbers appearing in the listings, followed
organizational or direct support or general support
by a list, in alphanumeric sequence, of all reference
levels of maintenance.
numbers appearing in the listings. Federal stock number
KB-- Item included in both a depot overhaul/repair kit and
and reference numbers are cross-referenced to each
a maintenance kit.
illustration figure and item number or reference
MO-Item to be manufactured or fabricated at
MF-Item to be manufactured or fabricated at direct support
1-3. Explanation of Columns
The following provides an explanation of columns in the
MH-Item to be manufactured or fabricated at general
support maintenance level.
a. Source, Maintenance, and Recoverability Codes
MD-Item to be manufactured or fabricated at depot
(1) Source code.
Indicates the manner of
AO- Item to be assembled at organizational level.
acquiring support items for maintenance, repair, or
AF- Item to be assembled at direct support maintenance
overhaul of end items. Source codes are-
AH-Item to be assembled at general support maintenance
PA--Item procured and stocked for anticipated or known
AD--Item to be assembled at depot maintenance level.
XA-Item is not procured or stocked because the
PB-- Item procured and stocked for insurance purposes
requirements for the item will result in the
because essentiality dictates that a minimum quantity
replacement of the next higher assembly.
be available in the supply systems.
XB-Item is not procured or stocked. If not available
PC--Item procured and stocked and which otherwise
through salvage, requisition.
would be coded PA except that it is deteriorative in
XC--Installation drawing, diagram instruction sheet, field
service drawing, that is identified by manufacturers'
PD- Support item, excluding support equipment, procured
for initial issue or outfitting and stocked only for
subsequent or additional