Product Details | FLAT WASHER

5310-00-616-6988 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: 5310-00-616-6988, 00-616-6988, 5310006166988, 006166988

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 00-616-6988

Drawings & Photos | NSN 5310-00-616-6988


Cross Reference | NSN 5310-00-616-6988

Part Number Cage Code Manufacturer
12M3570-17 81755 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN AERONAUTICS
210915 03956 NORTHROP GRUMMAN SYSTEMS CORPORATION DIV NAVAL AND MARINE SYSTEMS
210915 56232 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN
2W1C25-22-32 43999 BOEING COMPANY, THE DBA BOEING
328667 03956 NORTHROP GRUMMAN SYSTEMS CORPORATION DIV NAVAL AND MARINE SYSTEMS
328667 56232 LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN
S107-4 26126 BURTON MEDICAL PRODUCTS CORPORATION

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Technical Data | NSN 5310-00-616-6988

Characteristic Specifications
MATERIAL STEEL COMP 301 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION QQ-S-766 HALF HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT PASSIVATE OVERALL
HOLE DIAMETER 0.375 INCHES NOMINAL
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 0.687 INCHES NOMINAL
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.032 INCHES NOMINAL
MANUFACTURERS CODE 03956
DESIGN CONTROL REFERENCE 328667

Restrictions/Controls & Freight Information | NSN 5310-00-616-6988

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