5305-00-132-1824 SETSCREW Index 5310-00-132-1827 WASHER,FLAT

National Stock Number:
5310-00-132-1826

Federal Supply Class:
5310

National Item Identification Number:
001321826

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:
4G13756-101A6Z800A AND M AEROSPACE, INC.
4G13756-101A98897LOCKHEED MARTIN CORP


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER2.910 INCHES MINIMUM AND 2.970 INCHES MAXIMUM
OVERALL DIAMETER4.090 INCHES MINIMUM AND 4.150 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7952 MIL SPEC 1ST MATERIAL RESPONSE OR QQ-S-698,COND CRCQ,FINISH 1 FED SPEC 1ST MATERIAL RESPONSE AND MIL-S-7952 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1020 OR STEEL COMP 1025 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM


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