5310-01-570-3957 NUT,PLAIN,HEXAGON Index 5310-01-570-3992 NUT,PLAIN,HEXAGON

National Stock Number:
5310-01-570-3961

Federal Supply Class:
5310

National Item Identification Number:
015703961

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:
1001912161C19MIL-COTS CORPORATION
111037010Y3H3FASTENAL COMPANY
12759-008440Y3H3FASTENAL COMPANY
30114211EFH8GENERAL DYNAMICS LAND SYSTEMS - FORCE PROTECTION INC.
30117061EFH8GENERAL DYNAMICS LAND SYSTEMS - FORCE PROTECTION INC.
MAS12797U7887NP AEROSPACE LIMITED
S0000241EFH8GENERAL DYNAMICS LAND SYSTEMS - FORCE PROTECTION INC.


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER21.0 MILLIMETERS NOMINAL
MATERIALSTEEL OVERALL
PERIPHERAL SHAPE STYLEROUND
PROPRIETARY CHARACTERISTICSPACS
OVERALL DIAMETER37.0 MILLIMETERS NOMINAL
SPECIAL FEATURESGRADE HV200/125 HARDENED
SURFACE TREATMENTZINC OVERALL
THICKNESS0.3 MILLIMETERS NOMINAL


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