5310-01-343-1772 NUT,SLEEVE Index 5330-01-343-1774 SEAL,PLAIN ENCASED

National Stock Number:
5310-01-343-1773

Federal Supply Class:
5310

National Item Identification Number:
013431773

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:
1259181819200US ARMY ARDEC RDECOM


Techincal Specification:
GENERAL CHARACTERISTICS ITEM DESCRIPTIONMATERIAL IS SPEC MIL-S-22499,CP 4, TY 1, CL 1;SURFACE TREATMENT IS MIL-L-3150 MIL SPEC SINGLE; FINISH IS OIL OVERALL
OVERALL DIAMETER2.270 INCHES NOMINAL
MATERIALSTEEL
SPECIAL FEATURESHOLE DIAMETER 1.375 INCHES; ROUND SHAPE; THICKNESS 0.068 INCHES.


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