5310-00-077-9906 WASHER,FLAT Index 5330-00-077-9912 O-RING

National Stock Number:
5310-00-077-9911

Federal Supply Class:
5310

National Item Identification Number:
000779911

Description:
WASHER,FLAT

Detail:
A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.


Manufacturer Information:
56373600088ROYAL OAK GAGE INC
56373631633ALINABAL HOLDINGS CORPORATION
56373677445RTX CORPORATION


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.338 INCHES MINIMUM AND 0.348 INCHES MAXIMUM
OVERALL DIAMETER0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS4001 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 1100 OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
PERIPHERAL SHAPE STYLEROUND
SURFACE FINISH63.0 MICROINCHES BOTTOM
SURFACE FINISH63.0 MICROINCHES TOP
THICKNESS0.030 INCHES MINIMUM AND 0.034 INCHES MAXIMUM


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