5305-01-406-5500

Find complete technical information, availability, and procurement data for: 5305-01-406-5500
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-406-5500

Item Name Code

18257

Assigment Date

01/06/1995 (31 years ago)

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

right-hand thread direction, hexagon head style, 2a thread class, 1.500 inches nominal fastener length, 1.000 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: 2a
Thread Direction: right-hand
Thread Length: 1.000 inches nominal
Fastener Length: 1.500 inches nominal
Head Style: hexagon
Head Height: 0.455 inches minimum and 0.483 inches maximum
Width Between Flats: 1.100 inches minimum and 1.125 inches maximum
Hole Diameter: 0.094 inches nominal
Nominal Thread Diameter: 0.375 inches
Hole Quantity: 1
Hole Type: drilled
Thread Quantity Per Inch: 10
Hardness Rating: 35.0 rockwell c minimum and 42.0 rockwell c maximum overall
Hole Configuration Style: hexagon flats
Material: steel comp 630 overall
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
155111114	Hexagon Head Cap Screw
274485PC26	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-406-5500?

The FSCG of the NSN 5305-01-406-5500 is 5305

Does the NSN 5305-01-406-5500 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-406-5500 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 5305-01-406-5500 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-406-5500 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 5305-01-406-5500 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Fri, Jan 6, 1995