MIL-DTL-24231E(SH)
4.5.9 Dye penetrant. Single cable connector bodies, multiple cable connector bodies, and covers, nuts,
washers, and plugs for hull inserts shall be examined for cracks by the liquid penetrant method, Type II, of
T9074-AS-GIB-010/271. If any cracks are found, this shall be cause for rejection. Welds shall be dye penetrant
tested. Surfaces shall be clean and free from oxide films prior to testing.
4.5.10 Shock. The shock test shall be conducted in accordance with Grade A, Class I, Type A lightweight
equipment of MIL-S-901 on completely assembled pressure-proof fittings to determine conformance to 3.5.10. Any
signs of electrical or mechanical damage shall be cause for rejection.
4.5.11 Vibration. The vibration test shall be performed on completely assembled pressure-proof fittings in
accordance with Type I of MIL-STD-167-1 to determine conformance to 3.5.11. Any signs of electrical or
mechanical damage shall be cause for rejection.
4.5.12 Inspection of single items. The tests specified in 4.5.12.1 through 4.5.12.4 shall apply to individual
parts of pressure-proof fittings acquired separately (that is, in lieu of a completely assembled fitting). These tests
apply to first article and conformance inspections.
4.5.12.1 Molded insert assemblies. The following tests shall apply to all molded insert assemblies purchased
separately:
a.
Visual and dimensional examination (see 4.4.1).
b.
c. Hydrostatic pressure test (see 4.5.4) shall be performed while insert assembly is mounted in an applicable
receptacle and in an unmated condition.
4.5.12.2 Hull insert plug, single cable connector body, multiple cable connector body, and multi-pin receptacle
body and adapter body for molded plugs. The tests specified for single items (see table I) shall be performed where
applicable.
4.5.12.3 Packing. The durometer hardness of each packing shall be in accordance with 3.5.5.2 when subjected
to the test specified in 4.5.5.2.
4.5.12.4 Caps. Each cap shall be checked for correct dimensions and O-ring surface finish.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging 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 pressure-proof fittings covered in this specification are primarily intended for use on
Naval submarines to provide watertight integrity. They are to be used as hull and bulkhead fittings for electrical
penetrations thereof.
6.2 Acquisition requirements. Acquisition documents should specify the following:
a.
Title, number, and date of this specification and the applicable specification sheet.
b.
The complete military part number.
c.
Type of pressure-proof fittings required (see 1.2).
d.
When first article is required (see 3.2).
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