21-403

View detailed technical data, stock status, and sourcing information for: 21-403
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-274-1917

Item Name Code

01847

Assigment Date

01/01/1961 (65 years ago)

3a thread class, dee head style, 2.188 inches nominal fastener length, 0.750 inches minimum thread length, 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: 0.750 inches minimum
Fastener Length: 2.188 inches nominal
Head Style: dee
Head Diameter: 0.609 inches nominal
Head Height: 0.188 inches nominal
Distance From Centerline To Flat: 0.215 inches minimum and 0.220 inches maximum
Shank Unthreaded Hole Diameter: 0.098 inches nominal first hole
Nominal Thread Diameter: 0.375 inches
Features Provided: finished head
Thread Quantity Per Inch: 24
Hardness Rating: 32.0 rockwell c minimum and 36.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 2.062 inches nominal first hole
Material: steel comp 3140 overall
Material Document And Classification: sae assn std single material response overall
Thread Series Designator: unf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-00-367-2156	No Name Available	10/08/1965
4130-00-504-8833	No Name Available	02/01/1976

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FAQs

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

What is the FSCG of the NSN 5306-00-274-1917?

The FSCG of the NSN 5306-00-274-1917 is 5306

Does the NSN 5306-00-274-1917 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-274-1917 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 5306-00-274-1917 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-274-1917 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 5306-00-274-1917 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961