MIL-DTL-0048669A (AR)
6.4.1 Armed. The detonator is centered in the spitback hole.
6.4.2 Partially Armed. A rotor assembly with two or more teeth in the armed position.
6.4.3 Automated acceptance inspection equipment. Equipment for which no, or
minimal, human involvement is required in the acceptance determination. This would include
equipment employing probes/sensors/transducers that are automatically manipulated to perform
measuring and detection functions. If readout is provided, the equipment will be categorized as
automated even if operator interpretation is needed in the accept/reject decision.
6.5 Key Word Listing.
M918 Projectile
M433 Cartridge
M550 Fuze
6.6 Critical Inspection Equipment.
6.6.1 System Reliability. The contractor should provide for each defect identified as
Critical, a manufacturing and inspection system that assured no more than one in a million
contain the defect. This should be assured by controlling the maximum defect rate produced
and the error rate of the inspection equipment such that the product of the two terms is less than
one in a million.
6.6.2 Maximum defect rate produced. The maximum defect rate produced should be
defined as the largest defect rate expected for the characteristics of concern on a monthly or lot
basis. The contractor should establish the maximum defect rate, however, it may not exceed
one percent without approval of the procuring contracting officer. Once established, the
contractor should monitor the defect rate to assure it does not exceed the maximum rate allotted.
If the established maximum defect rate is exceeded, the production of that feature should be
terminated until the cause is determined and corrected. Additionally, all products for that period
of time should be rejected and reinspected.
6.6.3 Maximum error rate of the inspection system. The error rate of the inspection
equipment should be defined as the expected ratio of the number of defective parts accepted to
the number of defective parts inspected by the equipment. The contractor, to meet the system
reliability as defined in contract, defines the maximum error rate allowed. However, it may not
exceed 1/500 without approval of the procuring contracting officer. Based on the maximum
error rate defined for the equipment, the contractor should develop demonstration test procedure
to demonstrate the error rate of the equipment. The test should be performed using defective
parts or reject standards. No part or standard should be accepted during the test. If a part or
standard is accepted, the cause for failure should be isolated and corrected and the test rerun.
Unless otherwise specified in the detailed item specification, the minimum number of test
samples to be run should be equal to 0.7 divided by the error rate (e.g. If the required error rate
is 1/1000, the sample size would be 0.7 divided by (1/1000) = 700.)
6.6.4 Periodic verification. Periodic verification of the system error rate should be
performed.
19
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business