MIL-PRF-24793A
4.5.3 Periodic inspection. Periodic inspection shall consist of group C
inspection. Except where the results of these inspections show noncompliance
with the applicable test requirements (see 4.5.3.1.4), delivery of products
that have passed group B shall not be delayed pending the results of these
first article verification inspections.
4.5.3.1 Group C inspection. Group C inspection shall consist of the
inspections specified in table V in the order shown. Group C inspections
shall be made on units that have passed the group B inspection.
4.5.3.1.1 Sampling plan. Every 60 months, a number of units of the same
PIN, sufficient to complete all of the inspections, which have passed group B
inspection shall be selected.
4.5.3.1.2 Failures.
One or more specimen or sample unit failures shall
constitute group C inspection failure.
TABLE V.
Group C inspection.
Inspection
Requirement
Test
Viscosity
3.5.1
4.6.1
Shelf life
3.5.2
4.6.2
Storage temperature
3.5.3
4.6.2
Linear shrinkage
3.5.5
4.6.4
Glass transition temperature
3.5.8
4.6.7
Coefficient of linear thermal
3.5.10
4.6.9
expansion
Operating temperature
3.5.11
4.6.9
4.5.3.1.3 Disposition of sample units. Sample units that have been
submitted to group C inspection shall not be shipped.
4.5.3.1.4 Noncompliance. Requirements regarding failure of group C
inspection shall be as identified in the contract (see 6.8.2).
4.6
Methods of Inspection.
4.6.1 Viscosity (see 3.5.1). The uncured adhesive shall be tested, using a
viscometer, in accordance with ASTM D 1084 using spindle #2 at a speed of 20
revolutions per minute (rpm) or equivalent.
4.6.2 Accelerated shelf life/storage temperature (see 3.5.2 and 3.5.3).
The uncured adhesive shall be exposed to a temperature of +50OC ± 2OC for 120
hrs. After exposure part of adhesive shall be subjected to the test specified
in 4.6.1. The remainder shall be cured in accordance with 3.5.4, and
subjected to the tests specified in 4.6.4, 4.6.5, and 4.6.6.
8
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business