MIL-T-46626C(OS)
been obtained from the cognizant Navy design activity prior to manufacture. When alternate materials or methods of manufacture are specified on the drawings, the bidder's selections shall be clearly stated in the proposal.
3.2 Components.
3.2.1 Primary components. For the purpose of this specification, the M43 impulse cartridge (Drawing
8593275) is defined as a primary component. Only primary components from a single lot shall be used in a production lot of thrusters; however, one primary component production lot may be used in more than one thruster production lot.
3.2.2 Component parts. All component parts shall meet the applicable requirements of MIL-T-46632 or MIL-T-60696 prior to assembly.
3.3 Torque. Torque requirements shall be as specified in table I. No movement shall occur upon application of the breakaway torque.
TABLE I. Torque requirements.
|
Components |
A |
B |
C |
Run On, min (inch pounds) |
Seating or bottoming (including A) (inch pounds) |
Breakaway, min (inch pounds) |
|
Head and body |
50 |
600 ± 20 |
400 |
3.4 Trunnion rotation. Upon completion of assembly, the trunnion shall be free to rotate 360 degrees.
3.5 Residual magnetism. The thruster shall not deflect the indicator of the compass more than five degrees in either direction (see 4.3.2).
3.6 Radiographic examination. Each thruster assembly shall be radiographically examined for defects
(see 4.3.3).
3.7 Functional.
3.7.1 Load. The thruster fired under load (see 6.3) shall perform as follows:
3.7.1.1 Stroke and velocity. The thruster shall be capable of delivering a stroke of 5.7 inches, minimum, to move an approved ejection seat either upward or downward with a maximum final velocity of 12 feet per second (fps) so that the ejection seat will be in a final position for ejection.
3.7.2 After load firing.
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