MIL-DTL-1688G
4.3 First article inspection. when a first article is required (see 3.1 and 6.2), it shall be examined for the
defects specified in 4.4.2 and 4.4.3 and tested for the characteristics specified in 4.4.4.
4.4 Conformance inspection. Unless otherwise specified, sampling for inspection shall be performed in
accordance with ASQ Z1.4. Unless otherwise specified, the Acceptable Quality Limits (AQLs) listed in this
section shall be used to establish the sample sizes, however, the acceptance number shall be zero.
4.4.1 Component and material inspection. Components and materials shall be inspected in accordance
with all the requirements of referenced documents unless otherwise excluded, amended, modified, or
qualified in this specification or applicable purchase document.
4.4.1.1 Component and material certification. A certificate of compliance may be acceptable as evidence
that the characteristics listed in table III conform to the specified requirements.
TABLE III. Component tests.
Characteristic
Requirement paragraph
Material
3.4
Denier per filament
3.4
Grams per denier strength
3.4
Light and heat resistant yarn
3.4
Fiber types mixtures
3.4
Strand construction
3.5
Denier of singles
3.5
Lay of singles
3.5
Turns per foot (singles)
3.5
4.4.2 End item visual examination. The rope shall be examined for the defects listed in table IV. All
defects shall be counted regardless of their proximity to each other. The lot size shall be expressed in units
of coils of rope. The sample unit shall be one coil of rope. One hundred feet shall be examined on each
coil of rope. The inspection level shall be II (see 6.5), and the acceptable quality limits (AQLs), expressed
in terms of defects per hundred units, shall be 1.5 for major defects and 4.0 for total (major and minor
combined) defects. Any critical defect found during sampling shall be cause for rejection of the lot
represented by the sample.
TABLE IV. End item visual defects.
Classification
Examine
Defect
Critical
Major
Minor
Appearance and
Any cut
1
workmanship
Chafed or damaged
2
Kink
3
Knot (singles, ply, strand, or rope)
5
Broken or loose end (singles, ply, strand,
or rope)
6
Bulged strand
7
Spliced or otherwise secured to make a
continuous length
8
Color
Other than specified
101
Resists and/or spotty dyeing
201
Specific shade not within established
tolerances
202
Uneven
203
Cleanness
Spot or stain, clearly visible 1/
204
Identification
Omitted, incorrect, illegible, or not as
205
1/ At normal inspection distance (approximately 3 feet).
4
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