3.19.3 Ri veted cormections. Rivet holes shall be accurately punched or
drilled and shall have the burrs removed. Rivets shall be driven with pressur e
tools and shall completely fill the holes. Rivet heads, when not countersunk or
flattened, shall be of approved shape and of uniform size for the same diamete r
of rivet. Rivet heads shall be full, neatly made, concentric with the rivet
holes and in full contact with the surface of the member.
3.19.4 Welding. Welding procedures shall be in accordance with a nationally
recognized welding code. The surface of parts to be welded shall be free from
rust, scale, paint, grease or other foreign matter. Welds shall be of
sufficient size and shape to develop the full strength of the parts connected by
the welds. Welds shall transmit stress without permanent deformation or failure
when the parts connected by the weld are subjected to proof and service
3.19.5 Castings. All castings shall be sound and free from patching,
misplaced coring, warping or any other defect which reduces the castings ability
to perform its intended function.
QUALITY ASSURAN CE PROVISIONS
4.1 Responsibility for inspection. Unless otherwise specified in the
contract or purchase order, the contractor is responsible for the performance of
all inspection and test requirements, and will provide all test instruments and
test site locations 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 the specification where such
inspections are deemed necessary to ensure supplies and services conform to
4.1.1 Respons ibilitv for compl iance. All items must 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.
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 all requirements
of the contract. Sampling inspection, as part of 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.
4.1.2 Compon ent and material inspection. Components and materials shall be
inspected in accordance with all the requirements specified herein and in
applicable referenced documents.
4.2 Class ification of inspections .
The inspection requirements specified
herein are classified as follows:
a. First article inspection (see 4.2.1).
b. Quality conformance inspection (see 4.2.2).