Product Details | FLAT WASHER

5310-00-637-2748 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: 5310-00-637-2748, 00-637-2748, 5310006372748, 006372748

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 00-637-2748

Drawings & Photos | NSN 5310-00-637-2748


Cross Reference | NSN 5310-00-637-2748

Part Number Cage Code Manufacturer
117071 32970 AIRCRAFT PARTS CORPORATION
117071 94931 BENDIX CORP THE BENDIX INTERNATIONAL DIV
117071 R1120 SATAIR A/S
769369-3 19315 HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER BENDIX NAVIGATION AND
769369-3 55972 HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS
FF-W-92B 81348 FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES

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Technical Data | NSN 5310-00-637-2748

Characteristic Specifications
MATERIAL STEEL OVERALL
HOLE DIAMETER 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.014 INCHES MINIMUM AND 0.016 INCHES MAXIMUM
MANUFACTURERS CODE 55972
DESIGN CONTROL REFERENCE 769369-3

Restrictions/Controls & Freight Information | NSN 5310-00-637-2748

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