5305-01-179-5256

Find complete technical information, availability, and procurement data for: 5305-01-179-5256
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-179-5256

Item Name Code

16282

Assigment Date

05/19/1984 (42 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.

right-hand thread direction, 0.917 inches minimum and 1.047 inches maximum thread length, 3a thread class, flat countersunk head style, 1.234 inches minimum and 1.281 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: 3a
Thread Direction: right-hand
Thread Length: 0.917 inches minimum and 1.047 inches maximum
Fastener Length: 1.234 inches minimum and 1.281 inches maximum
Head Style: flat countersunk
Head Diameter: 0.720 inches minimum and 0.781 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.375 inches
Width Across Flats: 0.219 inches minimum and 0.221 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 70000 pounds per square inch
Hardness Rating: 80.0 rockwell b minimum overall
Minimum Yield Strength: 30000 pounds per square inch
Countersink Angle: 80.0 degrees minimum and 84.0 degrees maximum
Material: steel comp 303 or steel comp 304 overall
Material Document And Classification: 66 fed std all material responses 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: 4 type

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
MS24672-29	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-179-5256?

The FSCG of the NSN 5305-01-179-5256 is 5305

Does the NSN 5305-01-179-5256 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-179-5256 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 5305-01-179-5256 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-179-5256 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 5305-01-179-5256 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Sat, May 19, 1984