TM 9-4520-257-12&P 0042 00
UNIT MAINTENANCE
H-45 LARGE RADIANT SPACE HEATER
(TYPE I, SOLID FUEL)
NSN 4520-01-354-1191
(TYPE II, LIQUID FUEL)
NSN 4520-01-329-3451
REPAIR PARTS AND SPECIAL TOOLS LIST, INTRODUCTION
0042 00-1
SCOPE
This Repair Parts and Special Tools List (RPSTL) authorizes spare and repair parts; special tools; special
tests, measurement, and diagnostic equipment (TMDE); and other special support equipment required for
performance of unit maintenance of the H-45 Large Radiant Type I (Solid Fuel) and Type II (Liquid Fuel)
Space Heaters. It authorizes the requisitioning, issue, and disposition of spares, repair parts, and special
tools as indicated by the source, maintenance, and recoverability (SMR) codes.
GENERAL
In addition to the this Introduction work package, the RPSTL is divided into the following work packages:
1. Repair Parts Work Packages. Work packages containing lists of spares and repair parts authorized
by this RPSTL for use in the performance of maintenance. These work packages also include parts
that must be removed for replacement of the authorized parts. Parts lists are composed of functional
groups in ascending alphanumeric sequence, with the parts in each group listed in ascending figure
and item number sequence. Hardware is listed with the components used. Bulk materials are listed
by item name in FIG. BULK at the end of the work packages. Repair parts kits are listed separately in
their own functional group and work package. Repair parts for reparable special tools are also listed
in a separate work package. Items listed are shown on the associated illustrations.
2. Special Tools List Work Packages. Work packages containing lists of special tools, special TMDE,
and special support equipment authorized by this RPSTL (as indicated by Basis of Issue (BOI)
information in the DESCRIPTION AND USABLE ON CODE (UOC) column). Tools that are
components of common tool sets and/or Class VII are not listed.
3. Cross-Reference Index Work Packages. There are two cross-reference index work packages in this
RPSTL: the National Stock Number (NSN) Index work package and the Part Number (P/N) Index
work package. The NSN Index work package refers you to the figure and the item number. The P/N
Index work package also refers you to the figure and item number.
EXPLANATION OF COLUMNS IN THE RPSTL WORK PACKAGES
Column (1) – Item No. Indicates the number used to identify items called out in the illustration.
Column (2) – Source, Maintenance, and Recoverability Code. The SMR code is a 5-position code
containing supply/requisitioning information, maintenance level authorization criteria, and disposition
instruction, as shown in the following breakout.
Source Code
Maintenance Code
Recoverability Code
X X
X
X
X
1st two
positions:
How you get
an item
3rd position:
Who can install
replace or use the
item
4th position:
Who can do complete
repair* on the item
5th position:
Who determines disposition
action on an item
*Complete Repair: Maintenance capacity, capability, and authority to perform all corrective maintenance
tasks of the “Repair” function in a use/user environment in order to restore serviceability to a failed item.
