5306-01-411-6431

Find complete technical information, availability, and procurement data for: 5306-01-411-6431
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-411-6431

Item Name Code

06666

Assigment Date

03/29/1995 (31 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.

flat chamfer head style, 0.870 inches nominal thread length, 1.250 inches nominal fastener length, right-hand thread direction, 2a thread class

Product Characteristics

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

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 0.870 inches nominal
Fastener Length: 1.250 inches nominal
Head Style: flat chamfer
Head Diameter: 0.863 inches minimum and 0.875 inches maximum
Head Height: 0.490 inches minimum and 0.500 inches maximum
First Diameter From Head: 0.370 inches minimum and 0.380 inches maximum
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 0.380 inches nominal
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.500 inches
Width Across Flats: 0.500 inches minimum and 0.503 inches maximum
Thread Quantity Per Inch: 13
Externally Relieved Body Diameter Quantity: 1
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Thread Series Designator: unc

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
1135E71FN42	Internal Wrenching Bolt
386B082-215	Internal Wrenching Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-411-6431?

The FSCG of the NSN 5306-01-411-6431 is 5306

Does NSN 5306-01-411-6431 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 5306-01-411-6431 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-411-6431 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 5306-01-411-6431 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Wed, Mar 29, 1995