MIL-DTL-82945B (OS)
3.2.3.1 Propellant batch. A propellant batch is a mix of ingredients, each ingredient composed of one
homogeneous lot that is mixed at one time in one vessel, resulting in a homogeneous mixture.
3.2.3.2 Rocket motor grain assembly batch. A rocket motor grain assembly batch is a group of rocket
motor grain assemblies cast from one propellant batch.
3.2.3.3 Rocket motor grain assembly lot. A rocket motor grain assembly lot is a group of rocket motor
grain assemblies composed of one or more rocket motor grain assembly batches all having the same
ingredient lots.
3.2.3.4 Catapult grain assembly batch. A catapult grain assembly batch is a group of catapult grain
assemblies cast from one propellant batch.
3.2.3.5 Catapult grain assembly lot. A catapult grain assembly lot is a group of catapult grain
assemblies composed of one or more catapult grain assembly batches all having the same ingredients lots.
3.2.3.6 Rocket catapult lot. A rocket catapult lot is a group of units composed of one lot of rocket motor
grain assemblies, one lot of catapult grain assemblies, one lot of external igniter assemblies, and one lot of
rocket motor igniters that are assembled at one time.
3.2.3.7 External igniter assembly lot. An external igniter assembly lot is a group of external igniter
assemblies that are composed of one lot of percussion primers, one lot of BKNO3 pellets, and one lot of
BKNO3 granules that are assembled at one time.
3.2.3.8 Rocket motor igniter lot. A rocket motor igniter lot is a group of external igniter assemblies that
are composed of one lot of BKNO3 pellets and one lot of BKNO3 granules that are assembled at one time.
3.2.3.9 Primary components. Primary components are all components containing explosive ingredients.
These include the percussion primers, the external igniter assembly, the catapult grain assembly, the
rocket motor grain assembly, and the rocket motor igniter assembly.
3.2.3.10 Major metal parts. The major metal parts are the motor tube (Drawing 513-174-0101), the
nozzle (Drawing 513-174-0102 or Drawing 513-174-0201), the motor tube head (Drawing 513-174-
0110), the double tang lock (Drawing 513-174-0219), the breech (Drawing 513-174-0133), the launcher
tube (Drawing 513-174-0146), and the trunnion (Drawing 513-174-0147).
3.3 Age of explosive components. The following paragraphs give the requirements for controlling the
age of explosive components.
3.3.1 Propellant. The propellant is defined as the rocket motor grain (rocket grain assembly per Drawing
513-174-0217) and the catapult grain (catapult grain assembly per Drawing 513-174-0218). For purposes
of this section, loaded is defined as when the rocket catapult lot is released for lot acceptance testing.
3.3.1.1 Rocket motor grain. The rocket motor grain shall be loaded within 180 days of the oldest rocket
motor propellant mix.
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