5305-01-389-2570

Find complete technical information, availability, and procurement data for: 5305-01-389-2570
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-389-2570

Item Name Code

22846

Assigment Date

04/21/1994 (32 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.

2.235 inches nominal fastener length, right-hand thread direction, flat chamfer head style, 3a thread class, 1.495 inches minimum and 1.505 inches maximum 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: 1.495 inches minimum and 1.505 inches maximum
Fastener Length: 2.235 inches nominal
Head Style: flat chamfer
Head Diameter: 0.853 inches minimum and 0.875 inches maximum
Head Height: 0.365 inches minimum and 0.375 inches maximum
Shoulder Diameter: 0.621 inches minimum and 0.623 inches maximum first shoulder
Shoulder Length: 1.500 inches nominal first shoulder
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.500 inches
Width Across Flats: 0.312 inches nominal
Thread Quantity Per Inch: 13
Shoulder Shape: round first shoulder
Material: steel comp 4340 overall
Material Document And Classification: ams 6415 assn std single material response or mil-s-5000 mil spec single material 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
8U56118-905	Shoulder Screw
MS21301-59	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-01-389-2570?

The FSCG of the NSN 5305-01-389-2570 is 5305

Does the NSN 5305-01-389-2570 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-389-2570 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 5305-01-389-2570 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-389-2570 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 5305-01-389-2570 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Thu, Apr 21, 1994