5310-00-209-0026 WASHER,FLAT Index 5310-00-209-0028 WASHER,FLAT

National Stock Number:
5310-00-209-0027

Federal Supply Class:
5310

National Item Identification Number:
002090027

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:
10116678A486GNIMIKKEISTOKESKUS NCB FINLAND
25039-4878062SARGENT AEROSPACE & DEFENSE, LLC
5310PL20543909009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
812066-0032345DEFENSE REDUCTION AGENCY
9387511121S4080PILATUS AIRCRAFT LTD
CSA4619982254CURTIS DYNA-FOG, LTD.
MS 20002-40291HROSOMAK S.A
MS20002-41YQE8ALLIANT TECHSYSTEMS OPERATIONS LLC
MS20002-480205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE
MS20002-496906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MS20002-4A0126LEONARDO SPA HELICOPTERS DIVISION -PRODUCTION SITE
MS20002-4A0311TECNO TRADE S.R.L.
MS20002-4AC910AERTEKNO S.R.L.
MS200020497499BELL TEXTRON INC
MS21333-5118076UMPCO, INC.
NAS143-480205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
HOLE DIAMETER0.252 INCHES MINIMUM AND 0.260 INCHES MAXIMUM
OVERALL DIAMETER0.521 INCHES MINIMUM AND 0.541 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 1330 OR STEEL COMP 4130 OVERALL
MINIMUM TENSILE STRENGTH125000 POUNDS PER SQUARE INCH
PERIPHERAL SHAPE STYLEROUND
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THICKNESS0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM


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