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• March 5, 2017 Create Date
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Hardware and Consumable Materials - Vol. 6

1-1. Purpose. 
This volume provides general 
information pertaining to the use and identification of 
hardware and materials. The application of hardware 
and materials on specific aircraft is not covered in the 
volume. Specific aircraft application, usage, and 
substitution is found in the individual aircraft 
maintenance manual. This volume is of maximum 
benefit to the mechanic who desires information about 
bolts, nuts, rivets, damps, finings, plate nuts, torque 
values, lockwire techniques, cotter pins, safety pins, Hi- 
Shear rivets, etc. This volume furnishes the mechanic 
with information about how to perform various 
mechanical functions which are used on all aircraft. 
This volume is not a requisitioning authority, and 
applicable repair part and special tool lists should be 
consulted to obtain the unit of issue and National Stock 
Number of the items required for maintenance. 
1-2. Scope. General information to guide aircraft 
maintenance personnel is covered within this volume; 
however, no attempt has been made to include special 
parts or equipment which are applicable only to 
individual or special aircraft. Aircraft hardware, their 
es, characteristics, and uses are presented in 
Materials used in ground servicing and 
airframe maintenance, including rubber materials, 
phenolic and plastic materials, adhesives 
sealants, and cements, are contained 
through 6. 
1-3. Authority for 
Interchangeability of 
Substitution 
and 
Material (Air Items). 
Substitution or interchange of items of for 
maintenance of Department of the Army aircraft will not 
be authorized, nor will orders be issued for shipment, 
unless substitution or interchangeability has been 
authorized by the U.S. Army Aviation and Troop 
Command (ATCOM) through one of the following 
methods: 

Incorporation 
of 
substitution 
interchangeability data in supply 
repair parts appendices, or 
directives. 

Interim information in the form of 
replies to specific problems. 
nunuals, 
technical 
individual