5305-01-559-4818

Find complete technical information, availability, and procurement data for: 5305-01-559-4818
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-559-4818

Item Name Code

06672

Assigment Date

12/19/2007 (18 years ago)

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.

right-hand thread direction, 0.500 inches nominal fastener length, 3a thread class, 0.118 inches minimum and 0.132 inches maximum point diameter, headless (setscrew) head style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class: 3a
Thread Direction: right-hand
Fastener Length: 0.500 inches nominal
Head Style: headless (setscrew)
Point Diameter: 0.118 inches minimum and 0.132 inches maximum
Point Style: cup
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.125 inches nominal
Thread Quantity Per Inch: 20
Point Chamfer Angle: 118.0 degrees nominal
Material: steel corrosion resisting overall
Thread Series Designator: unc

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5305-01-559-4818?

The FSCG of the NSN 5305-01-559-4818 is 5305

Does the NSN 5305-01-559-4818 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-559-4818 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5305-01-559-4818 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-559-4818 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5305-01-559-4818 was assigned to the Federal Catalog?

It was assigned 18 years ago, on Wed, Dec 19, 2007