NAS-1638 › Cleanliness Requirements of Parts Used in Hydraulic Systems

NAS-1638 - REVISION 4 - CURRENT -- See the following: AS-4059 NAS-380
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Cleanliness Requirements of Parts Used in Hydraulic Systems

Scope

This specification establishes the acceptance cleanliness limits of hydraulic fluid wetting internal surfaces of parts, assemblies, lines and fittings for use in hydraulic systems prior to storage and/or assembly.

Notes

Claudia's Notes:
This NAS drawing is inactive for new design.  Please continue to use it for replacement parts.  However, for new design, please use AS-4059 and NAS-380.


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Document Number

NAS-1638

Revision Level

REVISION 4

Status

Current

Publication Date

Dec. 22, 2011

Page Count

3 pages