20868-004 FIND 28

View detailed technical data, stock status, and sourcing information for: 20868-004 FIND 28
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-288-7841

Item Name Code

06672

Assigment Date

11/13/1988 (37 years ago)

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

headless (setscrew) head style, right-hand thread direction, 0.739 inches minimum and 0.761 inches maximum fastener length, flat point style, 3a 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: 3a
Thread Direction: right-hand
Fastener Length: 0.739 inches minimum and 0.761 inches maximum
Head Style: headless (setscrew)
Point Style: flat
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.312 inches
Width Across Flats: 0.156 inches minimum and 0.158 inches maximum
Thread Quantity Per Inch: 24
Hardness Rating: 35.0 rockwell c minimum and 45.0 rockwell c maximum overall
Material: steel comp 303 or steel comp 303se overall
Material Document And Classification: astm a582 assn std all material responses overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: unf
Nondefinitive Spec/Std Data: 1 type and 1 style

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
20868-004 FIND 28	Setscrew
AN565AC524H12	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-01-288-7841?

The FSCG of the NSN 5305-01-288-7841 is 5305

Does the NSN 5305-01-288-7841 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-288-7841 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 5305-01-288-7841 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-288-7841 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 5305-01-288-7841 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Sun, Nov 13, 1988