5305-01-286-7994

Find complete technical information, availability, and procurement data for: 5305-01-286-7994
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-286-7994

Item Name Code

18257

Assigment Date

10/08/1988 (37 years ago)

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (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 designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

1.125 inches minimum thread length, 2a thread class, right-hand thread direction, hexagon head style, 3.545 inches minimum and 3.625 inches maximum fastener 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: 1.125 inches minimum
Fastener Length: 3.545 inches minimum and 3.625 inches maximum
Head Style: hexagon
Head Height: 0.272 inches minimum and 0.291 inches maximum
Width Between Flats: 0.612 inches minimum and 0.625 inches maximum
Nominal Thread Diameter: 0.437 inches
Thread Quantity Per Inch: 14
Material: copper alloy 462 or copper alloy 464 or copper alloy 482 or copper alloy 485 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
5305PL0793890	Hexagon Head Cap Screw
A6726.043.132	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-286-7994?

The FSCG of the NSN 5305-01-286-7994 is 5305

Does the NSN 5305-01-286-7994 have a Schedule B code assigned?

Yes, the Schedule B code is 7415338550

Does NSN 5305-01-286-7994 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 5305-01-286-7994 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-286-7994 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 5305-01-286-7994 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Sat, Oct 8, 1988