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AMSC N/A FSC 5340
INCH-POUND
MIL-A-18001K(NAVY)
w/ INT. AMENDMENT 3
24 October 2007
USED IN LIEU OF
MIL-A-18001K
w/AMENDMENT 2
02 May 2005
MILITARY SPECIFICATION
ANODES, SACRIFICIAL ZINC ALLOY
This specification is approved for use by all Departments and Agencies of the Department of Defenses.
1. SCOPE
1.1 Scope
. This specification covers the requirements for zinc anodes (galvanic protectors) in the form of
plates, slabs, discs and rods for corrosion protection (cathodic protection) of metals and alloys. It also includes
features of anode design and fabrication such as cast-in cores for mounting purposes. The material described by this
specification contains elements for which the Occupational Safety and Health Administration (OSHA) has set
standards for exposure limits. Handling, storage, and application of this material should be in accordance with the
most recent Code of Federal Regulations Title 29, Part 1910 and 1915 and any other safety and health regulations
(local or otherwise) which may apply.
1.2 Classification
.The anodes are of the following classes and types, as specified (see 6.2).
1.2.1 Class 1 – Cast-in cores
Type ZHS – Zinc, hull slab (steel straps) (23 and 42 pound sizes).
Type ZHB – Zinc, hull slab (brass straps) (23 pound size).
Type ZHC – Zinc, hull slab (core straps) (23 and 42 pound sizes).
Type ZSS – Zinc, submarine slab (steel strap) (12 and 24 pound sizes).
Type ZTS – Zinc, teardrop shape (steel strap) (5 pound size) in accordance with NACA 460.
Type ZEP – Zinc, heat exchanger or fair water disc (pipe core or pipe bushing core).
Style A – Square slab (9 pound size).
Style B – Circular slab (various sizes).
Style C – Semi-circular slab (23 pound size).
Type ZBP – Zinc, bar (pipe core) (8 pound size).
Type ZDM – Zinc, segmented disc (machine formed interlocking core).
Type ZMP – Zinc, mooring chain (pipe core or pipe bushing core) (various sizes).
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