5305-01-020-1471

Find complete technical information, availability, and procurement data for: 5305-01-020-1471
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-020-1471

Item Name Code

06657

Assigment Date

04/25/1976 (50 years ago)

0.253 inches minimum thread length, 3a thread class, flat countersunk head style, right-hand thread direction, 0.610 inches nominal 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: 0.253 inches minimum
Fastener Length: 0.610 inches nominal
Head Style: flat countersunk
Head Diameter: 0.500 inches nominal
Internal Drive Style: cross recess type ii
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 100.0 degrees nominal
Screw Material: steel
Screw Material Document And Classification: mil-s-7839 mil spec single material response
Screw Surface Treatment: cadmium
Screw Surface Treatment Document And Classification: f1.1929,fscm 81205 mfr ref single treatment response
Thread Series Designator: unf

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
3-99431-1	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-020-1471?

The FSCG of the NSN 5305-01-020-1471 is 5305

Does the NSN 5305-01-020-1471 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-020-1471 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 5305-01-020-1471 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-020-1471 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 5305-01-020-1471 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Sun, Apr 25, 1976