5306-01-179-5902

Find complete technical information, availability, and procurement data for: 5306-01-179-5902
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-179-5902

Item Name Code

27851

Assigment Date

05/19/1984 (42 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.

5.500 inches nominal fastener length, 0.660 inches nominal thread length, round w/wrench flats chamfered head style, 3a thread class, right-hand thread direction

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: 0.660 inches nominal
Fastener Length: 5.500 inches nominal
Head Style: round w/wrench flats chamfered
Head Diameter: 0.875 inches nominal
Head Height: 0.200 inches nominal
Width Between Flats: 0.750 inches nominal
Grip Diameter: 0.4980 inches minimum and 0.4990 inches maximum
Nominal Thread Diameter: 0.500 inches
Grip Length: 4.840 inches nominal
Thread Quantity Per Inch: 20
Surface Finish: 63.0 microinches bearing surface of head
Surface Finish: 63.0 microinches grip
Special Features: drilled hole in threaded end 0.250 in. dia
Material: steel uns k44220 overall
Material Document And Classification: mil-s-8844,class 3,300m mil spec single material response overall
Surface Treatment: cadmium 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
1881-87	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-179-5902?

The FSCG of the NSN 5306-01-179-5902 is 5306

Does the NSN 5306-01-179-5902 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-179-5902 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 5306-01-179-5902 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-179-5902 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 5306-01-179-5902 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Sat, May 19, 1984