MIL-DTL-19379C(SH)
4.4.2.4 Delamination and porosity test method. The mount resilient element shall be cut into two parts and
examined for porosity. The cut parts shall be immersed in Toluene (ACS reagent grade, ≥99.5 percent) for
16±¼ hours at a temperature of 80±5 °F. After removal from Toluene, the sections of the mount shall be examined
to determine evidence of separation into distinct layers or laminations.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging and storage requirements shall be as specified in the
contract or order (see 6.2). When packaging of materiel is to be performed by DoD or in-house contractor
personnel, these personnel need to contact the responsible packaging activity to ascertain packaging requirements.
Packaging requirements are maintained by the Inventory Control Point s packaging activities within the Military
Service or Defense Agency, or within the military service s system commands. Packaging data retrieval is available
from the managing Military Department s or Defense Agency s automated packaging files, CD-ROM products, or
by contacting the responsible packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.)
6.1 Intended use. The mount types covered in this specification are intended to isolate shock and vibration on
surface ships and submarines.
6.2 Acquisition requirements. Acquisition documents should specify the following:
a.
Title, number, and date of this specification.
b.
Mount type (see 1.2.1).
c.
Type of metal steel or manganese bronze (see 3.4.1).
d.
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 No. 19379
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 orders for
the products covered by this specification. Information pertaining to qualification of products may be obtained from
Commander, Naval Sea Systems Command, ATTN: SEA 05S, 1333 Isaac Hull Avenue, SE, Stop 5160,
Washington Navy Yard DC 20376-5160 or emailed to CommandStandards@navy.mil. An online listing of
products qualified to this specification may be found in the Qualified Products Database (QPD) at
6.4 Definitions.
6.4.1 Axial direction. The direction which is parallel to the center bolt axis of the mount as shown in
803-1385824.
6.4.2 Dynamic stiffness. The real part of the frequency-dependent complex ratio of force on the blocked output
side of the mount to displacement on the input side during sinusoidal vibration. Also referred to as spring constant
or elastic dynamic stiffness.
6.4.3 Radial direction. A direction which is perpendicular to the center bolt axis of the mount as shown in
803-1385824.
6.5 Static load-deflection, radial dynamic stiffness and damping. Approximate static deflection at rated load
for each mount type is listed in table XV. Dynamic stiffness in either the radial or axial direction should be similar
when subjected to a single equivalent load in that direction. Damping loss factor should be approximately 0.12.
17
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business