5305-00-576-0938 SCREW,MACHINE Index 5306-00-576-0948 BOLT,MACHINE

National Stock Number:
5310-00-576-0942

Federal Supply Class:
5310

National Item Identification Number:
005760942

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:
47-110-239-1A897499BELL TEXTRON INC
5310H13-013-181996U S ARMY AVIATION AND MISSILE COMMAND
61-103-120-104614TEXTRON SYSTEMS CORPORATION
61-103-120-180070LOCKHEED MARTIN CORPORATION
61-103-120-197499BELL TEXTRON INC


Techincal Specification:
MATERIALSTEEL COMP 4130 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-18729 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.350 INCHES MINIMUM AND
0.410 INCHES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
OVERALL DIAMETER2.990 INCHES MINIMUM AND
3.010 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
THICKNESS0.053 INCHES MINIMUM AND
0.073 INCHES MAXIMUM
SURFACE FINISH63.0 MICROINCHES ALL SURFACES
MINIMUM TENSILE STRENGTH90000 POUNDS PER SQUARE INCH
THE MANUFACTURERS DATA
MANUFACTURERS CODE97499
DESIGN CONTROL REFERENCE61-103-120-1


Click here to Register for Free 30-day Trial