ADDITIONAL INDICATORS

APPENDIX A

MIL-HDBK-162A

Volume 1 of 2

15 December 1965

ADDITIONAL INDICATORS (cont'd)

Example. Radio Set AN/ARC-3( ) might be assigned for a new airborne radio communication set under development.

The cognizant development organization might then assign AN/ARC-3 (XA-1), AN/ARC-3(XA-2), etc., type numbers to

the various sets developed for test. When the set was considered satisfactory for use, the experimental indicator would

be dropped and procurement nomenclature AN/ARC-3 would be officially assigned thereto.

Training Sets. A set or equipment designed for training purposes will be assigned type numbers as follows:

1. A set to train for a specific basic set will be assigned the basic set type number followed by a dash, the

letter T, and a number. Example: Radio Training Set AN/ARC6A-T1 would be the first training set for Radio Set

AN/ARC-6A.

2. A set to train for general types of sets will be assigned the usual set indicator letters followed by a dash, the

letter T, and a number. Example: Radio Training Set AN/ARC-T1 would be the first training set for general airborne

Parenthesis Indicator. A nomenclature assignment with parenthesis, ( ) following the basic type number is made to

identify an article generally, when a need exists for a more general identification than that provided by nomenclature

assigned to specific designs of the article. Examples: AN/GRC-5( ), AM-6( )/GRC-5, SB-9( )/GG. A specific design is

identified by the plain basic type number, the basic type number with a suffix letter, or the basic type number with an

experimental symbol in parenthesis. Examples: AN/GRC-5, AN/GRC5A, AN/GRC-5(XC-1), AM-6B/GRC-5, SB-9(XE-

3)/GG. The letter V within the parenthesis is used to identify systems with varying parts list.

NOMENCLATURE POLICY

(See MILSTD-196B for Statement of Policies)

1. JETDS type designation shall be assigned to:

(a) Complete systems, subsystems, centrals, sets, groups, units (components), and subassemblies of

military design either definitive or variable in configuration.

(b) Material of either commercial or military design, which are grouped for a military purpose.

(c) Electronic materiel of military design which are part of, or used with, an end item not identified in the

JETDS.

(d) Commercial materiel requiring military identification for use by the U. S. Government.

(e) Electronic materiel of military design which are not part of, or used with, a set.

2. JETDS type designation will not be assigned to:

(a) Materiel cataloged commercially, except in accordance with commercial materiel requiring military

identification for use by the U. S. Government.

(b) Parts such as capacitors, electron tubes, and resistors, except if required to facilitate military

identification.

(c) Materiel having other identification in coordinated (joint) military specifications or type designation

systems.

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