Downloaded from https://www.everyspec.com MIL-STD-1808B Typical system subsystem sub-subsystem number composition. 4.1.1.4 Subject number. The subject number is assigned by the manufacturer and generally identifies tasks or components. This number shall be assigned in consecutive order within the manual or view package, e.g., the fifth subject in a Job Guide (JG) would be XX-XX-05. 4.1.1.5 Function number. When used, the function number shall be assigned as prescribed by MIL-PRF-83495. 5 DETAIL REQUIREMENTS. 5.1 Use of SSSN. The SSSN shall be used as described in the documents cited in section 2 . System and subsystem numbers are assigned as specified herein, as required. 5.2 System numbering.
The following system, subsystem numbers, and titles shall be used, as required by equipment design and as required by the documents listed in section 2 . 3 System Sub- system Sub-sub- system Subject Function Sample breakdown of SSSN: 34-52-101-001 (First element) (Second element) (Third element) (Fourth element) Applicable to: 134- 0 0- 00 the entire system in general as specified herein. 34- 25 0- 00 the entire subsystem as specified herein. 34- 5 31- 00 the entire sub-subsystem as assigned by the manufacturer. 34- 5 1- 401 (01-99) a general procedure of the subsystem as assigned by the manufacturer. General procedures do not use the fourth element.
34- 5 1- 5101 (101- 999) a specific component in the sub-subsystem as assigned by the manufacturer. Requires the use of the fourth element. 34- 5 1- 101- 601 a specific function, e.g., operational checkout, as assigned by the manufacturer. NOTES: 1 34-............................................... Navigation System. 2 34-50-.......................................... Dependent Position Determining Subsystem. 3 34-51-00...................................... Sub-subsystem as assigned by manufacturer. 4 34-51-01...................................... General item. 5 34-51-101.................................... Specific to a component. 6 34-51-101-01...............................
Function, e.g., operational check-out.