MIL-PRF-15624G
6.5 Material certification. Materials to be installed in submarines are to be controlled to prevent off-gassing,
which contaminates the atmosphere and can result in health hazards to personnel or deleterious effects on
machinery. These controls are accomplished through the Submarine Material Control Program, which is described
in the Nuclear Powered Submarine Atmosphere Control Manual, NAVSEA S9510-AB-ATM-010 chapter titled
"Material Control Program." Under the Submarine Material Control Program, all materials considered for use on
submarines require certification and assignment of a usage category. Under the certification process, candidate
materials are selected by Navy activities or contractors, and a request for certification is submitted to the Naval Sea
Systems Command, SEA 05M2, 1333 Isaac Hull Ave., SE, Stop 5160, Washington Navy Yard, DC 20376-5160 or
emailed to CommandStandards@navy.mil. The certification request is accompanied by detailed information,
including descriptions of the material, method of application, usage, and storage. A chemical analysis is conducted,
which is normally accomplished through off-gas testing. The off-gas test is required to be conducted in a
Government approved laboratory designated by the preparing activity. Information pertaining to this test
requirement may be obtained from the Naval Sea Systems Command, SEA 05M2, 1333 Isaac Hull Ave., SE, Stop
5160, Washington Navy Yard, DC 20376-5160 or emailed to CommandStandards@navy.mil. Based on the
chemical analysis results, a usage category is assigned to the material defining whether, and to what extent, the
material may be used on submarines.
6.6 Definitions.
6.6.1 Major defect. A major defect is a defect that is likely to result in failure, or to materially reduce the
usability of the rubber material for its intended purpose.
6.6.2 Minor defect. A minor defect is a defect that is not likely to materially reduce the usability of the unit of
product for its intended purpose, or is a departure from established standards having little bearing on the effective
use or operation of the unit.
6.7 Shelf-life. This specification covers items where the assignment of a Federal shelf-life code is a
consideration. Specific shelf-life requirements should be specified in the contract or purchase order, and should
include, as a minimum, shelf-life code, shelf-life package markings in accordance with MIL-STD-129 or
FED-STD-123, preparation of a materiel quality storage standard for Type II (extendible) shelf-life items, and a
minimum of 85 percent shelf-life remaining at time of receipt by the Government. These and other requirements, if
necessary, are in DoD 4140.27-M, Shelf-life Management Manual. The shelf-life codes are in the Federal Logistics
Information System Total Item Record. Additive information for shelf-life management may be obtained from DoD
4140.27-M, or the designated shelf-life Points of Contact (POC). The POC should be contacted in the following
order: (1) the Inventory Control Points that manage the item and (2) the DoD Service and Agency administrators for
the DoD Shelf-Life Program. Appropriate POCs for the DoD Shelf-Life Program can be contacted through the DoD
Shelf-Life Management website: https://www.shelflife.hq.dla.mil/.
6.8 Subject term (key word) listing.
Molded shapes
Sheets
Strips
Vulcanized synthetic
6.9 Changes from previous issue. Marginal notations are not used in this revision to identify changes with
respect to the previous issue due to the extent of the changes.
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