5305-01-190-4586

Find complete technical information, availability, and procurement data for: 5305-01-190-4586
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-190-4586

Item Name Code

18257

Assigment Date

09/27/1984 (41 years ago)

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

8.375 inches nominal fastener length, 1.625 inches nominal thread length, 0.320 inches minimum and 0.337 inches maximum head height, right-hand thread direction, hexagon head style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Direction: right-hand
Thread Length: 1.625 inches nominal
Fastener Length: 8.375 inches nominal
Head Style: hexagon
Head Height: 0.320 inches minimum and 0.337 inches maximum
Width Between Flats: 0.551 inches minimum and 0.563 inches maximum
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 16
Material: steel comp 316 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
25B8833	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-190-4586?

The FSCG of the NSN 5305-01-190-4586 is 5305

Does the NSN 5305-01-190-4586 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-190-4586 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 5305-01-190-4586 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-190-4586 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 5305-01-190-4586 was assigned to the Federal Catalog?

It was assigned 41 years ago, on Thu, Sep 27, 1984