5305-01-398-4022

Find complete technical information, availability, and procurement data for: 5305-01-398-4022
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-398-4022

Item Name Code

06672

Assigment Date

11/02/1994 (31 years ago)

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

3a thread class, 0.700 inches minimum and 0.710 inches maximum thread length, headless (setscrew) head style, 2.490 inches minimum and 2.510 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: 0.700 inches minimum and 0.710 inches maximum
Fastener Length: 2.490 inches minimum and 2.510 inches maximum
Head Style: headless (setscrew)
Hole Diameter: 0.040 inches minimum and 0.050 inches maximum
Point Length: 1.780 inches minimum and 1.810 inches maximum
Point Diameter: 0.079 inches minimum and 0.081 inches maximum
Point Style: chamfer dog
Internal Drive Style: slot
Nominal Thread Diameter: 0.250 inches
Hole Quantity: 1
Hole Type: drilled
Thread Quantity Per Inch: 20
Point Chamfer Angle: 40.0 degrees minimum and 50.0 degrees maximum
Material: steel comp 4130 overall
Material Document And Classification: mil-2-6758, comp 4130 mil spec single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416, type 2 fed spec single treatment response overall
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
2743999-1	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-01-398-4022?

The FSCG of the NSN 5305-01-398-4022 is 5305

Does the NSN 5305-01-398-4022 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-398-4022 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 5305-01-398-4022 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-398-4022 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 5305-01-398-4022 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Wed, Nov 2, 1994