Product Details | FLAT WASHER

5310-00-257-2412 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.

Part Alternates: 5310-00-257-2412, 00-257-2412, 5310002572412, 002572412

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 00-257-2412

Drawings & Photos | NSN 5310-00-257-2412


Cross Reference | NSN 5310-00-257-2412

Part Number Cage Code Manufacturer
1600825-3 06840 BENDIX CORP THE
202354 0KDP7 KIDDE-FENWAL INC DBA CHEMTRON KIDDE FIRE SYSTEMS
202354 61423 KIDDE TECHNOLOGIES INC DIV KIDDE AEROSPACE AND DEFENSE
PB50834-3 19315 HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER BENDIX NAVIGATION AND
PB50834-3 99251 CARLETON LIFE SUPPORT SYSTEMS INC. DBA COBHAM MISSION SYSTEM

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Technical Data | NSN 5310-00-257-2412

Characteristic Specifications
MATERIAL RUBBER SYNTHETIC OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION 37203,FSCM 90201 MFR REF SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING 70.0 SHORE DUROMETER A NOMINAL
HOLE DIAMETER 0.442 INCHES NOMINAL
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 0.620 INCHES NOMINAL
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.062 INCHES NOMINAL

Restrictions/Controls & Freight Information | NSN 5310-00-257-2412

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Category Code Description
No Freight Information