MIL-DTL-85769B(AS)
(Copies of this document are available from www.astm.org or ASTM International, 100
Barr Harbor Drive, West Conshohocken, PA 19428-2959.)
2.4 Order of precedence. In the event of a conflict between the text of this document and
the references cited herein, the text of this document takes precedence. Nothing in this
document, however, supersedes applicable laws and regulations unless a specific exemption has
been obtained.
3. REQUIREMENTS
3.1 First article. When specified (see 6.2), a sample shall be subjected to first article
inspection in accordance with 4.3.
3.2 Conformance to documents. The rocket motor shall conform to this specification and
the documents listed in DL1638AS120.
3.3 Characteristics.
3.3.1 Radiographic inspection (M101). All rocket motor assemblies shall be
radiographically inspected (see 4.5.2).
3.3.2 Circuit resistance (M102). The igniter circuit resistance on all rocket motor
assemblies, when measured from the connector at 70+10°F, shall be between 0.45 to 0.75 ohms
(see 4.5.3).
3.4 Ballistic requirements (M103). Rocket motors shall meet the ballistic requirements in
Table I over the temperature range of -40°F to 140°F (see 4.5.5, 6.5.1, 6.5.3, 6.5.4, 6.5.5, 6.5.6).
TABLE I. Ballistics requirements.
Parameter
Requirement
Total impulse (lb f-sec)
3400 min
Action time (sec)
2.5 max
Thrust (lb force)
3750 max
Ignition delay (sec)
0.085 max
3.5 Workmanship. Motors and components, when examined visually in 4.5.1, shall be
free from dents, scratches, split or cracked components, poor quality welds, chipping or flaking
of plated or painted surfaces, sharp edges, or other defects or discontinuities as specified on the
applicable drawings.
3.6 Data cards. Data cards, when completed in accordance with MIL-STD-1168, shall be
included for each production lot of rocket motors.
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