5305-00-281-8529

Find complete technical information, availability, and procurement data for: 5305-00-281-8529
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-281-8529

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

flat chamfer head style, right-hand thread direction, 0.689 inches minimum and 0.760 inches maximum thread length, 3a thread class, 0.740 inches minimum and 0.760 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: 0.689 inches minimum and 0.760 inches maximum
Fastener Length: 0.740 inches minimum and 0.760 inches maximum
Head Style: flat chamfer
Head Diameter: 0.389 inches minimum and 0.414 inches maximum
Head Height: 0.256 inches minimum and 0.276 inches maximum
Hole Diameter: 0.070 inches nominal
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.250 inches
Hole Quantity: 5
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 125000 pounds per square inch
Hardness Rating: 26.0 rockwell c minimum and 32.0 rockwell c maximum
Screw Material: steel comp 8740
Screw Material Document And Classification: ams 6322 assn std single material response
Screw Surface Treatment: cadmium
Screw Surface Treatment Document And Classification: ams 2400 assn std single treatment response
Head Hole Configuration Style: round
Thread Series Designator: unf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-271-3409	No Name Available	01/01/1963

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
AN115911	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-281-8529?

The FSCG of the NSN 5305-00-281-8529 is 5305

Does the NSN 5305-00-281-8529 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-281-8529 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 5305-00-281-8529 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-281-8529 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 5305-00-281-8529 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963