5310-01-340-1170 WASHER,FLAT Index 5310-01-340-1172 WASHER,FLAT

National Stock Number:
5310-01-340-1171

Federal Supply Class:
5310

National Item Identification Number:
013401171

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:
74510999167HAMILTON SUNDSTRAND CORPORATION


Techincal Specification:
MATERIALSTEEL COMP 630 OR
STEEL COMP XM-12 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD 1ST MATERIAL RESPONSE OR
AMS 5659 ASSN STD 2ND MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONPN14.10,CAGEC 99167 MFR REF SINGLE TREATMENT RESPONSE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER1.820 INCHES MINIMUM AND
1.830 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER2.990 INCHES MINIMUM AND
2.995 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.086 INCHES MINIMUM AND
0.090 INCHES MAXIMUM
HARDNESS RATING35.0 ROCKWELL C MINIMUM AND
40.0 ROCKWELL C MAXIMUM


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