MIL-STD-1168 Ammunition Lot Numbering And Ammunition Data CardThis standard establishes and describes the lot numbering system and ammunition data card requirements that are used to identify and document items of ammunition including guided missiles and energetic materiel during all phases of their life cycles.

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4.4.5.1.3.3

Different rounds of the same caliber

17

4.4.5.1.3.4

Different type bombs or rocket motors

17

4.4.5.1.4

New contract

17

4.4.5.1.5

S equence  numbe r  ex ceed s  "999"

18

4.4.5.1.6

Change in manu fa cturer ' s  identi ficati on  s ymbol

18

4.4.6

Changes in interfixes for technical reasons

18

4.4.6.1

Interruptions

18

4.4.6.2

Dismantling operations

18

4.4.6.3

Production line configurations

18

4.4.6.3.1

Request for a single interfix

19

4.4.6.4

Production line modifications

20

4.4.6.4.1

Production line splitting

21

4.4.6.4.2

Production line merging

21

4.4.6.5

Same item -  new designs

21

4.4.6.6

Explosives and chemicals

22

4.4.6.7

Best interest of the Government

22

4.4.7

Documenting changes in interfix numbers

22

4.5

Ammunition lot number - lot sequence number

22

4.5.1

Lot sequence number description

22

4.5.2

Correctness of lot sequence numbers

23

4.5.3

Changes in lot sequence numbers

23

4.5.3.1

For administrative purposes

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4.5.3.1.1

Time

23

4.5.3.1.2

Quantity

23

4.5.3.2

For technical reasons

23

4.5.3.2.1

Interruptions

23

4.5.3.2.2

Homogeneity

23

4.5.3.2.3

Best interest of the Government

24

4.6

Ammunition lot number - lot suffix

24

4.6.1

Ammunition lot suffix description

24

4.6.2

Use and documentation of suffixing

24

4.6.3

Suffix request

24

4.6.4

Suffix sequence and exceptions

25

4.6.5

Suffixing of lots prior to Government acceptance

25

4.6.6

Suffixing of lots after Government acceptance

26

4.6.7

Assignment of different suffixes

27

4.6.7.1

Navy exception

27

4.6.8

Assignment of suffixes on previous lot number formats

28

4.6.9

Situations which may not require a suffix

28

4.7

Ammunition lot number - lot identifier codes

28

4.7.1

Lot identifier code description

28

4.7.2

Experimental lots

28