3940-01-363-9077 WASHER,FLAT Index 3940-01-363-9078 BRACKET,MOUNTING

National Stock Number:
5310-01-363-9077

Federal Supply Class:
5310

National Item Identification Number:
013639077

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:
17G111031-788277THE BOEING COMPANY


Techincal Specification:
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL DIAMETER1.250 INCHES NOMINAL
MATERIALSTEEL COMP 4140 OVERALL
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESMADED FROM 13D0094-3; USED TO SUPPOIRT C-17 AIRCRAFT; NAME GIVEN BY MFG BASE, USED ON A ADAPTER ASSY, HOIST


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