5310-00-136-1635 WASHER,RECESSED Index 5310-00-136-1638 NUT,SPECIAL

National Stock Number:
5310-00-136-1637

Federal Supply Class:
5310

National Item Identification Number:
001361637

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:
756630-10198897LOCKHEED MARTIN CORP


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HEAT TREATMENTAS FABRICATED
HOLE DIAMETER1.010 INCHES MINIMUM AND 1.025 INCHES MAXIMUM
OVERALL DIAMETER1.880 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758,COND D4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4130 OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.125 INCHES NOMINAL


Click here to Register for Free 30-day Trial