NSN 5310-01-031-5018

Part Details | FLAT WASHER

5310-01-031-5018 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.

Alternate Parts: 117998, 117998, 5310-01-031-5018, 01-031-5018, 5310010315018, 010315018

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
53NOV 24, 197601-031-501813393 ( WASHER, FLAT )
REFERENCE DRAWINGS & PICTURES

RECTANGULAR

ROUND

ROUND W/FLATS

Cross Reference | NSN 5310-01-031-5018
Part Number Cage Code Manufacturer
11799883311UNISON INDUSTRIES, LLC
11799859501UNISON INDUSTRIES, LLC
Technical Data | NSN 5310-01-031-5018
Characteristic Specifications
HOLE DIAMETER0.318 INCHES MINIMUM AND 0.328 INCHES MAXIMUM
PERIPHERAL SHAPE STYLE0 ROUND
WIDTH ACROSS FLATS0.610 INCHES MINIMUM AND 0.630 INCHES MAXIMUM
CENTER HOLE SHAPE STYLE ROUND W/FLATS
HOLE WIDTH ACROSS FLATS0.265 INCHES MINIMUM AND 0.270 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
THICKNESS0.008 INCHES MINIMUM AND 0.012 INCHES MAXIMUM