MS90563H
REQUIREMENTS:
Design and construction: See figure 1.
Chain shall be passivated stainless steel in accordance with type II, class 3, trade number 8
as specified in RR-C-271 for -1, -3 and -4, and type II, class 3, trade number 35 as specified in
RR-C-271 for -7, -9 and -11.
Chain shall move freely on protective cap after assembly. Chain shall be within one link of length specified.
Cover finish: See MIL-DTL-22992.
Optional design chain: Chain may be reversed and a larger link provided as a reverse link to provide the necessary D clearance hole.
Part or Identifying Number (PIN) example:
MS90563 -1 N
MS number |
Dash |
Finish |
|
number |
(see requirements) |
Supersession data:
MS PIN MS90563-3 is superseded by MS PIN MS90563-3C. MS PIN MS90563-4 is superseded by MS PIN MS90563-4C.
Qualification:
Visual and mechanical examination. Magnetic permeability.
Water immersion.
Salt spray (corrosion). Tensile.
Air leakage.
Group A sampling plan. Lot and sample sizes shall be specified in table I. Samples shall be randomly selected from the lot. If one or more defects are found, the lot shall be rescreened and defects removed. A new sample as specified in table I shall then be randomly selected. If one or more defects are found
in the second sample lot, the lot shall not be supplied to this specification.
TABLE I. Group A sampling plan.
Lot size |
Sampling size |
1 to 13 14 to 150 151 to 280 281 to 500 501 to 1,200 1,201 to 3.200 |
100 percent 13 units 20 units 29 units 34 units 42 units |
3
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