5306-01-685-4273

Find complete technical information, availability, and procurement data for: 5306-01-685-4273
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-685-4273

Item Name Code

15903

Assigment Date

12/17/2019 (6 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.

dished hexagon head style, 3.355 inches minimum and 3.385 inches maximum fastener length, 3a thread class, right-hand thread direction, 0.370 inches nominal thread length

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
Thread Length: 0.370 inches nominal
Fastener Length: 3.355 inches minimum and 3.385 inches maximum
Head Style: dished hexagon
Head Height: 0.125 inches minimum and 0.140 inches maximum
Width Between Flats: 0.429 inches minimum and 0.439 inches maximum
Grip Diameter: 0.2490 inches minimum and 0.2495 inches maximum
End Item Identification: fixture
Nominal Thread Diameter: 0.250 inches
Grip Length: 2.990 inches minimum and 3.010 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Part Name Assigned By Controlling Agency: bolt, tension, hex head close tolerance
Material: iron alloy 660 overall
Surface Treatment: aluminum overall
Thread Series Designator: unjf

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
NAS6304A48	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-685-4273?

The FSCG of the NSN 5306-01-685-4273 is 5306

Does the NSN 5306-01-685-4273 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-685-4273 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 5306-01-685-4273 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-685-4273 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 5306-01-685-4273 was assigned to the Federal Catalog?

It was assigned 6 years ago, on Tue, Dec 17, 2019