3110-00-112-1269 BEARING,BALL,ANNULAR Index 5905-00-112-1272 RESISTOR,FIXED,FILM

National Stock Number:
5310-00-112-1271

Federal Supply Class:
5310

National Item Identification Number:
001121271

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:
10087977A486GNIMIKKEISTOKESKUS NCB FINLAND
1158898519207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HEAT TREATMENTCOLD ROLLED
HOLE DIAMETER0.235 INCHES MINIMUM AND 0.240 INCHES MAXIMUM
OVERALL DIAMETER0.565 INCHES MINIMUM AND 0.570 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-698 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 1008 OR STEEL COMP 1009 OR STEEL COMP 1015 OR STEEL COMP 1018 OR STEEL COMP 1020 OVERALL
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THICKNESS0.014 INCHES MINIMUM AND 0.016 INCHES MAXIMUM


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