5305-01-421-0489

Find complete technical information, availability, and procurement data for: 5305-01-421-0489
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-421-0489

Item Name Code

16282

Assigment Date

10/31/1995 (30 years ago)

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes:nut (1), self-locking, cap.

right-hand thread direction, flat chamfer head style, 3a thread class, 2.250 inches nominal fastener length, 1.500 inches minimum thread 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: 1.500 inches minimum
Fastener Length: 2.250 inches nominal
Head Style: flat chamfer
Head Diameter: 0.735 inches minimum and 0.750 inches maximum
Head Height: 0.492 inches minimum and 0.500 inches maximum
Locking Feature: pellet or strip or patch threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.500 inches
Width Across Flats: 0.375 inches nominal
Thread Quantity Per Inch: 13
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 45.0 rockwell c maximum fastener
Minimum Yield Strength: 155000 pounds per square inch
Material: plastic polyamide (nylon) locking feature
Material: steel fastener
Material Document And Classification: fed 66 fed std all material responses 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
A640050C225	Socket Head Cap Screw
H467S001 ITEM NO 47	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-421-0489?

The FSCG of the NSN 5305-01-421-0489 is 5305

Does the NSN 5305-01-421-0489 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-421-0489 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 5305-01-421-0489 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-421-0489 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 5305-01-421-0489 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Tue, Oct 31, 1995