5305-01-228-9499

Find complete technical information, availability, and procurement data for: 5305-01-228-9499
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-228-9499

Item Name Code

18257

Assigment Date

03/22/1986 (40 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.

hexagon head style, 2a thread class, right-hand thread direction, 1.438 inches minimum and 1.500 inches maximum fastener length, 1.327 inches minimum and 1.500 inches maximum 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: 1.327 inches minimum and 1.500 inches maximum
Fastener Length: 1.438 inches minimum and 1.500 inches maximum
Head Style: hexagon
Head Height: 0.348 inches minimum and 0.371 inches maximum
Width Between Flats: 0.798 inches minimum and 0.812 inches maximum
Nominal Thread Diameter: 0.562 inches
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 80000 pounds per square inch
Hardness Rating: 80.0 rockwell b minimum overall
Minimum Yield Strength: 30000 pounds per square inch
Surface Finish: 63.0 microinches threads
Material: steel comp 303se or steel comp 304l or steel comp 316l or steel comp 308 or steel comp 309s or steel comp 310s or steel comp 314 or steel comp 302b or steel comp 301 or steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 310 or steel comp 316 or steel comp 317 or steel comp 321 or steel comp 322 or steel comp 324 or steel comp 347 or steel comp 348 or steel comp 384 or steel comp 385 overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: unf
Nondefinitive Spec/Std Data: 2 type and 10p style

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
MS35308-438	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-228-9499?

The FSCG of the NSN 5305-01-228-9499 is 5305

Does the NSN 5305-01-228-9499 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-228-9499 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 5305-01-228-9499 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-228-9499 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 5305-01-228-9499 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Sat, Mar 22, 1986