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|  MIL-H-904J
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(Non-Government standards and other publications are normally available from the organizations
that prepare or distribute the documents. These documents also may be available in or through
libraries or other informational services.)
2.3 Order of precedence. In the event of a conflict between the text of this document and
the references cited herein, the text of this document takes precedence. Nothing in this document,
however, supersedes applicable law and regulations unless a specific exemption has been obtained
3. REQUIREMENTS
3.1 Qualification and first article. Qualification and first article requirements, as applicable,
shall be as specified (see 3.1.1 and 3.1.2).
3.1.1 Qualification. Class 1 and class 2 hoists of each type and capacity furnished under this
specification shall be products which are authorized by the qualifying activity for listing on the
applicable qualified products list at the time of award of contract (see 4.3 and 6.5).
.3.1.2 First article When specified (see 6.2), a sample shall be subjected to first article
inspection (see 6.6). First article inspection is not required for hoists on the qualified products list.
3.2 Materials. Material used shall be as specified in 3.2.1 through 3.2.3.
3.2.1 Class 3 hoists. Metal castings, weldments, and steel forgings used for load bearing parts
on class 3 hoists shall be inspected as specified (see 4.4.1). Cast iron shall not be used for load
bearing parts. Cast iron for non-load bearing parts shall be in accordance with MIL-C-24707/5 or
ASTM A 48, class 35 or better. Aluminum castings for load bearing or non-load bearing parts
shall be in accordance with ASTM B 26 or ASTM B 108, type UNS A03560, temper T6.
3.2.2 Recovered materials. Unless otherwise specified herein, all equipment, material, and
articles incorporated in the products covered by this specification shall be new and may be
fabricated using materials produced from recovered materials to the maximum extent practicable
without jeopardizing the intended use. The term "recovered materials" means materials which have
been collected or recovered from solid waste and reprocessed to become a source of raw materials,
as opposed to virgin raw material None of the above shall be interpreted to mean that the use
of used or rebuilt products is allowed under this specification unless otherwise specifically specified.
3.2.3 Prohibited material. Material prohibited for equipment used aboard ship shall be as
follows:
Cadmium in any form
b.
Asbestos
c.
Magnesium or magnesium based alloys (does not include steel or aluminum which
contain less than 0.1 percent magnesium).
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