5305-12-156-4902 SCREW,CAP,HEXAGON HEAD Index 5310-12-156-4906 WASHER,LOCK

National Stock Number:
5310-12-156-4905

Federal Supply Class:
5310

National Item Identification Number:
121564905

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:
000125021010D8046DAIMLER AG
001778-0000D8218ROTZLER GMBH + CO. KG
0017780000D8218ROTZLER GMBH + CO. KG
048475D2396RHEINMETALL WAFFE MUNITION GMBH
10410741A486GNIMIKKEISTOKESKUS NCB FINLAND
21MITFASEDIN125STGALZN8CD8286DIN DEUTSCHES INSTITUT FUER NORMUNGEV
243001121000124BSAPA OPERACIONES SL
4331100600D0684SAF-HOLLAND GMBH
5310121564905A00AME.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE
B21DIN125-ST-A3PD8286DIN DEUTSCHES INSTITUT FUER NORMUNGEV
B21DIN125ST-A3PD8286DIN DEUTSCHES INSTITUT FUER NORMUNGEV
B21DIN125STA3PD8286DIN DEUTSCHES INSTITUT FUER NORMUNGEV
B21DIN125STGALZN8CD8286DIN DEUTSCHES INSTITUT FUER NORMUNGEV
DIN125-B21-140HV-A3PD8286DIN DEUTSCHES INSTITUT FUER NORMUNGEV
DIN125-B21-ST-A3PD8286DIN DEUTSCHES INSTITUT FUER NORMUNGEV
DIN125B21STA3PD8286DIN DEUTSCHES INSTITUT FUER NORMUNGEV


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING140,0 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 250,0 VICKERS OR FIRTH DIAMOND PYRAMID MAXIMUM
HOLE DIAMETER21,0 MILLIMETERS NOMINAL
MATERIALSTEEL
PERIPHERAL SHAPE STYLEROUND
OUTSIDE LEFT CORNER CHAMFER ANGLE45,0 DEGREES NOMINAL
OVERALL DIAMETER37,0 MILLIMETERS NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONDIN50961, VERFAHREN GALZN8C
SURFACE TREATMENTCHROMATE AND ZINC
TEST DATA DOCUMENTD8286-DIN125 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
THICKNESS3,0 MILLIMETERS NOMINAL


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