5305-01-413-5478

Find complete technical information, availability, and procurement data for: 5305-01-413-5478
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-413-5478

Item Name Code

18257

Assigment Date

05/17/1995 (31 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

0.846 inches maximum thread length, hexagon head style, 2a thread class, 1.000 inches nominal fastener 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: 2a
Thread Direction: right-hand
Thread Length: 0.846 inches maximum
Fastener Length: 1.000 inches nominal
Head Style: hexagon
Head Height: 0.302 inches minimum and 0.323 inches maximum
Width Between Flats: 0.736 inches minimum and 0.750 inches maximum
Locking Feature: patch threads
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 13
Minimum Tensile Strength: 120000 pounds per square inch
Hardness Rating: 25.0 rockwell c minimum and 34.0 rockwell c maximum overall
Material: plastic polyamide (nylon) locking feature
Material: steel fastener
Material Document And Classification: mil-f-18240 mil spec single material response locking feature
Material Document And Classification: sae j429, grade 5 assn std all material responses fastener
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
A720050C100	Hexagon Head Cap Screw
H623DB001 ITEM 17	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-413-5478?

The FSCG of the NSN 5305-01-413-5478 is 5305

Does the NSN 5305-01-413-5478 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-413-5478 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 5305-01-413-5478 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-413-5478 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 5305-01-413-5478 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Wed, May 17, 1995