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|  MIL-H-904J
to operating and maintenance personnel shall be smooth and rounded to the extent that a
hazardous surface does not exist Bolted connections shall use standard bolts and nuts; self-locking
nuts are acceptable. All threads shall have full thread engagement.
4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order,
the contractor is responsible for the performance of all inspection requirements (examinations and
tests) as specified herein. Except as otherwise specified in the contract or purchase order, the
contractor may use his own or any other facilities suitable for the performance of the inspection
requirements specified herein, unless disapproved by the Government. The Government reserves
the right to perform any of the inspections set forth in this specification where such inspections
are deemed necessary to ensure supplies and services conform to prescribed requirements.
4.1.1 Responsibility for compliance. All items shall meet all requirements of sections 3 and
5. The inspection set forth in this specification shall become a part of the contractor's overall
inspection system or quality program (see 6.3). The absence of any inspection requirements in the
specification shall not relieve the contractor of the responsibility of ensuring that all products or
supplies submitted to the Government for acceptance comply with ail requirements of the contract.
Sampling inspection, as part of the manufacturing operations, is an acceptable practice to ascertain
conformance to requirements, however, this does not authorize submission of known defective
material, either indicated or actual, nor does it commit the Government to accept defective
material.
4.2 Classification of inspections. The inspection requirements specified herein are classified
as follows:
a. Qualification inspection (classes 1 and 2 only) (see 4.3)
b. First article inspection (class 3 only) (see 4.4)
C. Quality conformance inspection (see 4.5).
4.3 Qualification inspection. Qualification inspection of class 1 and class 2 hoists shall be
conducted at a laboratory satisfactory to NAVSEA Qualification inspection shall be conducted
on each class and all types of hoist and shall consist of the examination specified in 4.6 and the
tests specified in 4.7. For shock-resistant hoists, qualification approval of hoists to grade A shock
will include approval of hoists to grade B shock, and standard hoists (non-shock-resistant), if
requested by the manufacturer. Qualification approval of hoists to grade B shock will include
qualification of standard hoists (non-shock-resistant), if requested by the manufacturer.
4.3.1 Rated load. The rated load of the hoists to be subjected to qualification inspection shall
be designated by NAVSEA When a particular hoist model is manufactured in several rated loads,
NAVSEA will designate the number and rated loads of the hoist models to be tested.
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