5310-00-187-2399 WASHER,FLAT Index 5310-00-187-2401 WASHER,FLAT

National Stock Number:
5310-00-187-2400

Federal Supply Class:
5310

National Item Identification Number:
001872400

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:
10168924A486GNIMIKKEISTOKESKUS NCB FINLAND
407 59977294PIPER INDUSTRIAL MANUFACTURING COMPANY, LLC
5310PL01501699009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
5310PL13687939009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
807285-0032345DEFENSE REDUCTION AGENCY
AN960PD61661125ECHELON SUPPLY AND SERVICE, INC.
AN960PD61688044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
CVC754-540LA2580378TRIUMPH AEROSTRUCTURES, LLC
CVC754-540LA25D9182ZF INDUSTRIEANTRIEBE WITTEN GMBH


Techincal Specification:
CENTER HOLE SHAPE STYLEROUND
CRITICALITY CODE JUSTIFICATIONFEAT
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.380 INCHES MINIMUM AND 0.400 INCHES MAXIMUM
OVERALL DIAMETER0.620 INCHES MINIMUM AND 0.645 INCHES MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/5 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2024 OVERALL
NONDEFINITIVE SPEC/STD DATAA TYPE AND 2 GRADE AND D CLASS
PERIPHERAL SHAPE STYLEROUND
SPECIAL FEATURESWEAPONS SYSTEM ESSENTIAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-A-8625 MIL SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCHROMATE OR ANODIZE OVERALL
THICKNESS0.057 INCHES MINIMUM AND 0.069 INCHES MAXIMUM


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