Product Details | FLAT WASHER

5310-01-542-3775 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: 12341212, 5310-01-542-3775, 01-542-3775, 5310015423775, 015423775

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 02 AUG 2006 01-542-3775

Drawings & Photos | NSN 5310-01-542-3775


Demand History | NSN 5310-01-542-3775

Part Number Request Date QTY Origin
12341212 2012-09-250 8 US

Cross Reference | NSN 5310-01-542-3775

Part Number Cage Code Manufacturer
12341212 19207 U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM

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Technical Data | NSN 5310-01-542-3775

Characteristic Specifications
MATERIAL STEEL COMP 1050 AND STEEL COMP 1070 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION ASTMA684 NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL
SURFACE TREATMENT ZINC OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION ASTMB633 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL
HOLE DIAMETER 0.654 INCHES MINIMUM AND 0.666 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 1.250 INCHES NOMINAL
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 2 BLANK RECTANGULAR
THICKNESS 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM
SPECIAL FEATURES REMOVE ALL BURRS AND SHARP EDGES
III HEAT TREATMENT QUENCHED AND TEMPERED
III PART NAME ASSIGNED BY CONTROLLING AGENCY WASHER,HARDENED FLAT

Restrictions/Controls & Freight Information | NSN 5310-01-542-3775

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
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
No Freight Information