TM Numbering Specification

From RadioNerds
Revision as of 12:13, 19 August 2013 by RadioNerds (talk | contribs)
Jump to navigation Jump to search

Signal Corps Technical Manuals, TM-11 Series

Technical Manuals originated around 1940 as a consolidation of earlier Radio Pamphlets, c 1918; Radio Communications Pamphlets, c 1921; and Training Manuals, Training Regulations, and Technical Regulations, c 1930.

TM 11-201, the earliest known, is entitled "Aircraft Radio SCR-134" and was formerly documented TR-1201-5. Initially, the manuals were not always grouped by equipment category, as the need did not then exist. With the explosion of equipment in World War Two, groupings soon became necessary.

    Many of the earlier numbers were "recycled" when the equipment for which they were originally designated became obsolete. There was also an inclusion of early 1950s equipment among much older units. In some cases, an A or B prefix was added to an original number while updating.  But in general, a new number would be issued, especially in the latter 1950s.  In 1958, a new FSN (Federal Stock Number) procedure was instituted, which more accurately defined the item in question and linked its TM 11- number to its supply number. 

For example:

TM 11-5815-283-35
TM Technical Manual
11 Signal Equipment
5815 Teletype and Facsimile Equipment
283 AN/FGC-70X
35 Field and Depot Maintenance
P Repair Parts and Special Tools


The Chart below Explains the Designators

Technical Manual Designations
SEC DEF
TM
Manual Type
TB - Technical Bulletin
TM - Technical Manual
TO - Technical Order
11
Equipment Designation
11 - Signal
5815
Class of Equipment
5805 - Telephone and Telegraph Equipment
5810 - Scrambler Equipment for above services
5815 - Teletype and Facsimile Equipment
5820 - Radio and Television Communications Equipment (except airborne)
5821 - Radio and Television Communications Equipment (Airborne)
5825 - Radio Navigation Equipment (except Airborne)
5826 - Radio Navigation Equipment (Airborne)
5830 - Intercommunications & Public Address Systems (except Airborne)
5831 - Intercommunications & Public Address Systems (Airborne)
5835 - Sound Recording and Reproducing Equipment
5840 - Radar Equipment (Except Airborne)
5841 - Radar Equipment (Airborne)
5845 - Underwater Sound Equipment
5895 - Miscellaneous Communications Equipment
6115 - Power Supplies
6605 - Compass Equipment
6615 - Helicopter Electronics
6625 - Test Equipment
6655 - Visual Radiation Equipment
6660 - Meteorological Equipment
6665 - Atomic Radiation (Radiac) Equipment
6695 - Criminology Equipment
6720 - Photographic Equipment
6730 - Projectors, Still & Movie
6740 - Film & Print Processing Equipment
6760 - Aircraft Cameras & Accessories
6780 - Photographic Equipment
6940 - Training Equipment
7440 - Data Processing Equipment
7450 - Special Audio Equipment
283
Specific Equipment Designator
35
Indicator of Coverage
10 - Operators Manual
12 - Operator and Organizational Maintenance Manual
14 - Operator, Organizational Maintenance & Field Maintenance
15 - Operator, Organizational Direct Service, and General Service
20 - Organizational Maintenance (Second Echelon)
24 - Organizational, Direct Service, and General Service Maintenance
25 - Organizational, Field and Deport Maintenance
34 - Direct Service and General Service Maintenance Manual
35 - Field and Deport Maintenance
50 - Calibration Procedure
P - Repair Parts & Special Tools