MIL-DTL-197L
a. Five panels fabricated of the same material as the bearing outer ring and having the
same surface finish as the bearing outer ring. Tests shall be conducted only for like kinds or
types of steel with high-chromium content (CRES or chrome).
b. Five bearings, bearing outer rings, or bearing inner rings with ground outer diameters,
selected at random which are classified as "scrap" or "reject", but whose surfaces are adequate
for the purpose of this test.
4.2.1.1.3 Sampling for corrosion test (method 40B). Two packages prepared by the
same production procedures as the packages being offered for acceptance shall be selected at
random at a minimum of once per week for the test of 4.4.3. Material contained in the packages
may be as specified in 4.2.1.1.2. This shall be a continuous test and packages shall be examined
daily. A new set of test packages shall be placed under test every week (168 hours) unless a
failure is noted prior to the end of the 168-hour period. If a failure (any corrosion) is noted prior
to the end of the 168-hour period, a new package, or packages, as applicable, shall be placed
under test immediately and packaging by the method represented by the failure shall be stopped.
All items packaged by the method represented, which have not already been shipped, shall be
rejected. After the correction of procedural deficiencies, the rejected material shall be
reprocessed, repackaged, re-sampled, and re-tested. This test is for process control only and
shall not affect material already shipped.
4.2.2 Materials. All materials to be used in packaging, including lubricants, shall be
inspected in accordance with the applicable material specification and the cleanliness levels of
this specification. If direct inspection is not specified under the terms of the contract or purchase
order, certified inspection and laboratory test reports shall be provided which verify that the
materials as furnished conform to the detailed specification (see 6.2).
4.2.3 Visual examination. Each of the sample packages selected in accordance with
4.2.1.1 shall be visually examined to verify compliance with the requirements of this
specification.
4.2.4 Visual examination under magnification. Instrument and instrument precision ball
bearings packaged in transparent materials shall be visually examined under a 10X magnification
through the package for contamination within the bearing or the package prior to shipment.
Other bearings as applicable shall be examined visually through the transparent package for
contamination. If the transparent packaging material is so cloudy that a 10X examination is not
possible, then the bearings need to be repackaged.
4.2.5 Marking examination. Unit, intermediate, and exterior packages shall be examined
4.2.6 Method of preservation. The military method used shall be in accordance with
contract or purchase order requirements and the requirements of this specification (see 6.2).
4.2.7 Level of packing. The level of packing shall be A or B, as specified in the contract
or purchase order (see 6.2).
27
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business