1621234-3

View detailed technical data, stock status, and sourcing information for: 1621234-3
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-143-2424

Item Name Code

16282

Assigment Date

11/30/1982 (43 years ago)

flat countersunk head style, right-hand thread direction, 3a thread class, 0.839 inches nominal thread length, 1.000 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: 0.839 inches nominal
Fastener Length: 1.000 inches nominal
Head Style: flat countersunk
Head Diameter: 0.480 inches minimum and 0.531 inches maximum
Locking Feature: pellet threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.156 inches minimum
Thread Quantity Per Inch: 20
Countersink Angle: 82.0 degrees nominal
Material: steel fastener
Material Document And Classification: st-484,300 assn std single material response fastener
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
1621234-3	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-143-2424?

The FSCG of the NSN 5305-01-143-2424 is 5305

Does the NSN 5305-01-143-2424 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-143-2424 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 5305-01-143-2424 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-143-2424 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 5305-01-143-2424 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Tue, Nov 30, 1982