MIL-DTL-18240F
6.1.1 Cross reference.
From Configurations listed in Revision D dated 25 February 1972
Configuration A plug /pellet type
superceeded by Type N
Configuration B strip type
superceeded by Type L
Configuration B patch type
superceeded by Type P
6.2. Acquisition requirements. Acquisition documents must specify the following:
a.
Title, number, and date of this specification.
b.
Issue of DODISS to be cited in the solicitation.
c.
Type (see 1.2, table I and figure 1).
d.
Part number in accordance with the applicable standard.
e.
Packaging requirements (see 5.1).
6.3 Qualification. With respect to products requiring qualification, awards will be made only
for products which are, at the time of award of contract, qualified for inclusion in qualified
products list QPL-18240, whether or not such products have actually been so listed by that date.
The attention of the contractors is called to these requirements, and manufacturers are urged to
arrange to have the products that they propose to offer to the Federal Government tested for
qualification in order that they may be eligible to be awarded contracts or purchase orders for the
products covered by this specification. Information pertaining to qualification of products may be
obtained from the Naval Air Warfare Center Air Craft Division, Code 435200A, Bldg 2187,
48110 Shaw Rd., Unit 5, Patuxent River MD, 20670-1906.
6.3.1 Qualification evaluation. Qualification inspection and evaluation of type N (see figure
1) locking element designs were based on the protrusion of the element being in accordance with
figure 1, dimension "B". Type N designs with protrusion of "B + 0.007 inch and design that are
otherwise the same as listed, also have qualification approval. To identify the element design with
greater protrusion of the dimension "B + 0.007 inch, figure 1 of this specification, the additional
+0.007 inch protrusion must be specified on the standard or drawing for the part, for nonstandard
parts that require a specific configuration, add a "P" to the government designation.
6.4 Torque test notes
6.4.1 A light oil such as Rainkote 400 or equivalent is used in the test (4.4.2) of fasteners to
reduce wear, prevent galling or seizure, prevent fretting, and aid in the installation and removal of
fasteners. A minimum amount may be used. This will give more consistent torque test results.
6.4.2 Some torque measuring devices, such as beam wrenches, could be 20-40% off on the
lower 20 percent of the scale and should not be used.
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