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TM 10-8400-203-23&P. Manual - part 20

10-8400-203-23&P

0022

REPAIR – CONTINUED

0022-5

Replace Hardware

1. Remove the chinstrap retention system.

2. Remove the screw with standard flathead screwdrivers and lift the attachment tab assembly. Note

orientation of the attachment tab assembly before removal (Figure 3).

Figure 3. Replacing Hardware.

3. Install new attachment tab assembly in the same orientation as when removed. Replace screw and

nut.

4. Inspect the screws to ensure tightness. If loosening persists, use the thread-locking compound.

END OF TASK

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0022

REPAIR – CONTINUED

0022-6

Replacing the Hook Disk

1. Remove pad suspension system.

2. Peel up the old disk by getting under it with a knife or small screwdriver blade. Use the blade to start

to lift the edge of the disk, being careful not to damage the helmet shell (Figure 4). Then peel off
remainder of disk by grabbing with your fingers or pliers.

Figure 4. Removing Hook Disc.

3. If paint is removed by the disk, repaint area.

4. Clean area with Isopropyl Alcohol.

5. Remove backing from new hook disk.

6. Apply new hook disk where old disk was located. Press into place with fingers.

7. Work any air bubbles to the side of the hook disk.

END OF TASK

END OF WORK PACKAGE

TM 10-8400-203-23&P

CHAPTER 4

PARTS INFORMATION

FOR

GENERAL REPAIR PROCEDURES FOR INDIVIDUAL EQUIPMENT

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0023

0023-1

PARTS INFORMATION

REPAIR PARTS AND SPECIAL TOOLS LIST (RPSTL)

INTRODUCTION

SCOPE

This RPSTL lists and authorizes spares and repair parts; special tools; special test, measurement, and
diagnostic equipment (TMDE); and other special support equipment required for performance of field
maintenance of OCIE equipment. 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 Introduction work package, this RPSTL is divided into the following work packages.

1. Repair Parts List 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 which 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. Sending units, brackets, filters, and
bolts are listed with the component they mount on. Bulk materials are listed by item name in FIG.
BULK at the end of the work packages. Repair parts kits are listed at the end of the individual
work packages. 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 Indexes Work Packages. There are two cross reference indexes work packages

in this RPSTL: the National Stock Number (NSN) Index work package, and the Part Number
(P/N) Index work package. The National Stock Number Index work package refers you to the
figure and item number. The Part Number Index work package refers you to the figure and item
number.

EXPLANATION OF COLUMNS IN THE REPAIR PARTS LIST AND SPECIAL TOOLS LIST WORK
PACKAGES

ITEM NO. (Column (1)). Indicates the number used to identify items called out in the illustration.

SMR CODE (Column (2)). The SMR code containing supply/requisitioning information, maintenance level
authorization criteria, and disposition instruction, as shown in the following breakout. This entry may be
subdivided into 4 subentries, one for each service.

TABLE 1. SMR Code Explanation

Source

Code

Maintenance

Code

Recoverability

Code

XX XX

1st two positions:
How to 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
unserviceable items.

*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.

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0023-2

EXPLANATION OF COLUMNS IN THE REPAIR PARTS LIST AND SPECIAL TOOLS LIST WORK
PACKAGES – CONTINUED

Source Code. The source code tells you how you get an item needed for maintenance,
repair, or overhaul of an end item/equipment. Explanations of source codes follow:

Source Code

Application/Explanation

PA
PB

NOTE

Items coded PC are subject to deterioration.

PC
PD
PE

Stock items; use the applicable NSN to requisition/request
items with these source codes. They are authorized to the
level indicated by the code entered in the third position of
the SMR code.

PF
PG
PH
PR
PZ

Items with these codes are not to be
requested/requisitioned individually. They are part of a kit
which is authorized to the maintenance level indicated in
the third position of the SMR code. The complete kit must
be requisitioned and applied.

KD
KF
KB

Items with these codes are not to be
requisitioned/requested individually. They must be made
from bulk material which is identified by the part number in
the DESCRIPTION AND USABLE ON CODE(UOC)
column and listed in the bulk material group work package
of the RPSTL. If the item is authorized to you by the third
position code of the SMR code, but the source code
indicates it is made at higher level, order the item from the
higher level of maintenance.

MF-Made at field
MH-Made at below
depot/sustainment level
ML-Made at SRA
MD-Made at depot
MG-Navy only

Items with these codes are not to be
requested/requisitioned individually. The parts that make
up the assembled item must be requisitioned or fabricated
and assembled at the level of maintenance indicated by
the source code. If the third position of the SMR code
authorizes you to replace the item, but the source code
indicates the item is assembled at a higher level, order the
item from the higher level of maintenance.

AF-Assembled by field
AH-Assembled by below
depot sustainment level
AL-Assembled by SRA
AD-Assembled by depot
AG-Navy only

Do not requisition an "XA" coded item. Order the next
higher assembly.(Refer to NOTE below.)

If an item is not available from salvage, order it using the
CAGEC and part number.

Installation drawings, diagrams, instruction sheets, field
service drawings; identified by manufacturer's part
number.

Item is not stocked. Order an XD-coded item through local
purchase or normal supply channels using the CAGEC
and part number given, if no NSN is available.

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0023-3

EXPLANATION OF COLUMNS IN THE REPAIR PARTS LIST AND SPECIAL TOOLS LIST WORK
PACKAGES – CONTINUED

NOTE

Cannibalization or controlled exchange, when authorized, may be used as a source of
supply for items with the above source codes except for those items source coded "XA"
or those aircraft support items restricted by requirements of AR 750-1.

Maintenance Code. Maintenance codes tell you the level(s) of maintenance authorized to use and repair
support items. The maintenance codes are entered in the third and fourth positions of the SMR code as
follows:

Third Position. The maintenance code entered in the third position tells you the lowest maintenance level
authorized to remove, replace, and use an item. The maintenance code entered in the third position will
indicate authorization to the following levels of maintenance:

Maintenance
Code

Application/Explanation

F -

Field maintenance can remove, replace, and use the item.

H -

Below Depot Sustainment maintenance can remove, replace, and use the item.

L -

Specialized repair activity can remove, replace, and use the item.

G -

Afloat and ashore intermediate maintenance can remove, replace, and use the item
(Navy only)

K -

Contractor facility can remove, replace, and use the item

Z -

Item is not authorized to be removed, replace, or used at any maintenance Level

D -

Depot can remove, replace, and use the item.

*NOTE - Army may use C in the third position. However, for joint service publications, Army will use O.

Fourth Position. The maintenance code entered in the fourth position tells you whether or not the item is
to be repaired and identifies the lowest maintenance level with the capability to do complete repair
(perform all authorized repair functions).

NOTE

Some limited repair may be done on the item at a lower level of maintenance, if
authorized by the Maintenance Allocation Chart (MAC) and SMR codes.

Maintenance
Code

Application/Explanation

F -

Field is the lowest level that can do complete repair of the item.

H -

Below Depot Sustainment is the lowest level that can do complete repair of the item.

L -

Specialized repair activity (enter specialized repair activity designator) is the lowest
level that can do complete repair of the item.

D -

Depot is the lowest level that can do complete repair of the item.

G -

Both afloat and ashore intermediate levels are capable of complete repair of item. (Navy
only)

K -

Complete repair is done at contractor facility

Z -

Nonreparable. No repair is authorized.

B -

No repair is authorized. No parts or special tools are authorized for maintenance of "B"
coded item. However, the item may be reconditioned by adjusting, lubricating, etc., at
the user level.

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0023-4

EXPLANATION OF COLUMNS IN THE REPAIR PARTS LIST AND SPECIAL TOOLS LIST WORK
PACKAGES – CONTINUED

Recoverability Code. Recoverability codes are assigned to items to indicate the disposition action on
unserviceable items. The recoverability code is shown in the fifth position of the SMR code as follows:

Recoverability
Code Application/Explanation
Z -

Nonreparable item. When unserviceable, condemn and dispose of the item at the
level of maintenance shown in the third position of the SMR code.

F -

Reparable item. When uneconomically reparable, condemn and dispose of the item at
the field level.

H -

Reparable item. When uneconomically reparable, condemn and dispose of the item at
the below depot sustainment level.

D -

Reparable item. When beyond lower level repair capability, return to depot.
Condemnation and disposal of item are not authorized below depot level.

L -

Reparable item. Condemnation and disposal not authorized below Specialized Repair
Activity (SRA).

A -

Item requires special handling or condemnation procedures because of specific
reasons (such as precious metal content, high dollar value, critical material, or
hazardous material). Refer to appropriate manuals/directives for specific instructions.

G -

Filed level reparable item. Condemn and dispose at either afloat or ashore
intermediate levels. (Navy only).

K -

Reparable item. Condemnation and disposal to be performed at contractor facility.

NSN (Column (3)). The NSN for the item is listed in this column.

CAGEC (Column (4)). The Commercial and Government Entity Code (CAGEC) is a five-digit code which
is used to identify the manufacturer, distributor, or Government agency/activity that supplies the item.

PART NUMBER (Column (5)). Indicates the primary number used by the manufacturer (individual,
company, firm, corporation, or Government activity), which controls the design and characteristics of the
item by means of its engineering drawings, specifications, standards, and inspection requirements to
identify an item or range of items.

NOTE

When you use an NSN to requisition an item, the item you receive may have a different
part number from the number listed.

DESCRIPTION AND USABLE ON CODE (UOC) (Column (6)). This column includes the following
information:
1.   The federal item name, and when required, a minimum description to identify the item.
2.   Part numbers of bulk materials are referenced in this column in the line entry to be manufactured or
fabricated.
3.   Hardness Critical Item (HCI). A support item that provides the equipment with special protection from

electromagnetic pulse (EMP) damage during a nuclear attack.

4. The statement END OF FIGURE appears just below the last item description in column (6) for a given

figure in both the repair parts list and special tools list work packages.

QTY (Column (7)). The QTY (quantity per figure) column indicates the quantity of the item used in the

breakout shown on the illustration/figure, which is prepared for a functional group, sub functional

group, or an assembly. A "V" appearing in this column instead of a quantity indicates that the quantity

is variable and quantity may change from application to application.

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