AN505-4R7

View detailed technical data, stock status, and sourcing information for: AN505-4R7
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-285-8704

Item Name Code

06657

Assigment Date

09/22/1988 (37 years ago)

right-hand thread direction, flat countersunk head style, 0.438 inches nominal fastener length, 0.371 inches minimum and 0.383 inches maximum thread length, 2a thread class

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: 0.371 inches minimum and 0.383 inches maximum
Fastener Length: 0.438 inches nominal
Head Style: flat countersunk
Head Diameter: 0.207 inches minimum and 0.225 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.112 inches
Thread Quantity Per Inch: 40
Minimum Tensile Strength: 55000 pounds per square inch
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Screw Material: steel comp 1010
Screw Material Document And Classification: qq-s-671 fed spec single material response
Screw Surface Treatment: cadmium and chromate
Screw Surface Treatment Document And Classification: qq-p-416 ty1 cl3 fed spec all treatment responses
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
AN505-4R7	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-285-8704?

The FSCG of the NSN 5305-01-285-8704 is 5305

Does the NSN 5305-01-285-8704 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-285-8704 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 5305-01-285-8704 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-285-8704 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 5305-01-285-8704 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Thu, Sep 22, 1988