MIL-DTL-24784 / 21B (SH)
a. Column 1, Reference designation. This column shall contain the reference designations of all
parts listed in sequential order. Unit numbering method of assigning reference designations,
as specified in IEEE 200 shall be used to identify units, assemblies, subassemblies, and parts.
MP numbers shall be assigned to mechanical parts subject to replacement, such as handles,
slides, and so forth, that are included in the APL but not assigned MP numbers in the
engineering drawings. With the exceptions of screws, nuts, bolts, and other attaching
hardware, every functioning part in the equipment shall have a reference designator. When
reference designations have been canceled for more than two consecutive items, only the first
and last of the designations are to be listed, separated by the word "through". For example:
3A1R69 through A1R100 not used.
b. Column 2, Part name. This column shall contain the name of the part.
c. Column 3, Part number. This column shall contain the part number.
d. Column 4, CAGE code. This column shall contain the Contractor and Government Entity
(CAGE) code of the manufacturer.
e. Column 5, Figure reference. This column shall reference the parts location illustration in
Chapter 6.
f. Column 6, Notes. This column shall contain equipment reference information such as serial
number, model number, configuration data, and so forth.
3.6.8.4 List of common item descriptions. This list shall include the description of all identical
parts that are used more than five times in the equipment. The description of each common item
shall totally identify the item including manufacturing CAGE code and part number or military
standard number. Like parts should be grouped and arranged in alphanumeric order. Item
numbers shall be assigned consecutively, for example:
Item number
Description
1
CAPACITOR, FIXED,CERAMIC: DIELECTRIC 3PF, 500
VDCW; MIL type CCZ1UJ030C
2
CAPACITOR, FIXED GLASS: DIELECTRIC 5100 PF, + 1%
300 VDCW, mfr 86969, dwg 231B743H15.
3
RESISTOR, FIXED, COMPOSITION: 3000 ohms + 5% 1/2w;
mfr 42384 dwg 4469D69
4
RESISTOR, FIXED, COMPOSITION: 4000 ohms + 5% 1/2w;
MIL type RC20GF402J.
3.6.8.5 List of attaching hardware. A list shall be included which that shows items of attaching
hardware. Attaching hardware shall be listed alphanumerically and identified by an assigned letter.
For example:
Letter code
Name and description
A
CAPSCREW, 1/4-28, UNF-2A, 1 in. lg,, CAP, HEX HEAD,
DRILLED HEAD, CRES: MS51100-8, 1/4-28, UNF-2A, 1 in. lg.
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