412-4678002 ITEM 21

View detailed technical data, stock status, and sourcing information for: 412-4678002 ITEM 21
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-372-9400

Item Name Code

16282

Assigment Date

03/23/1993 (33 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

flat chamfer head style, 3a thread class, 1.500 inches maximum thread length, 1.440 inches minimum and 1.500 inches maximum fastener length, right-hand thread direction

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 maximum
Fastener Length: 1.440 inches minimum and 1.500 inches maximum
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: patch or pellet or strip 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: 130000 pounds per square inch
Minimum Yield Strength: 90000 pounds per square inch
Material: plastic polyamide (nylon) locking featurenickel alloy k-500 fastener
Material Document And Classification: qq-n-286 cl a annealed and age hardened fed spec 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
412-4678002 ITEM 21	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-372-9400?

The FSCG of the NSN 5305-01-372-9400 is 5305

Does the NSN 5305-01-372-9400 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-372-9400 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 5305-01-372-9400 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-372-9400 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 5305-01-372-9400 was assigned to the Federal Catalog?

It was assigned 33 years ago, on Tue, Mar 23, 1993