6404649 FIND 55

View detailed technical data, stock status, and sourcing information for: 6404649 FIND 55
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-386-8160

Item Name Code

01872

Assigment Date

02/16/1994 (32 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.

3b thread class, right-hand thread direction, 4.760 inches nominal plate width, 0.311 inches nominal plate thickness, 2.827 inches nominal nut height

Product Characteristics

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

Thread Class: 3b
Thread Direction: right-hand
Nut Height: 2.827 inches nominal
Plate Thickness: 0.311 inches nominal
Plate Width: 4.760 inches nominal
Nut Mounting Provision: straight holes
Thread Series: un
Thread Quantity Per Inch: 08
Nominal Thread Size: 2.000 inches
Special Features: four holes each 0.400 inches outside diameter;located thru the flanged base.
Material: copper alloy overall

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
6404649 FIND 55	Plate Plain Nut
6404651 FIND 54	Plate Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-386-8160?

The FSCG of the NSN 5310-01-386-8160 is 5310

Does the NSN 5310-01-386-8160 have a Schedule B code assigned?

Yes, the Schedule B code is 7415290000

Does NSN 5310-01-386-8160 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 5310-01-386-8160 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-386-8160 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 5310-01-386-8160 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Wed, Feb 16, 1994