5305-01-597-4686

Find complete technical information, availability, and procurement data for: 5305-01-597-4686
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-597-4686

Item Name Code

16282

Assigment Date

06/09/2011 (15 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.

1.250 inches nominal fastener length, flat countersunk head style, right-hand thread direction, 3a thread class, patch locking feature locking feature

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: 1.250 inches nominal
Head Style: flat countersunk
Locking Feature: patch locking feature
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 16
Part Name Assigned By Controlling Agency: screw, cap, hex socket, flat countersunk head
Material: steel comp 316 overall
Material Document And Classification: astm a 479 national std/spec single material response overall
Material Document And Classification: mil-dtl-18240 mil spec single material response locking feature
Surface Treatment: passivate overall
Surface Treatment Document And Classification: 7250920, para 2.2.5.1.b mfr ref 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
7251254-C-124	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-597-4686?

The FSCG of the NSN 5305-01-597-4686 is 5305

Does the NSN 5305-01-597-4686 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-597-4686 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 5305-01-597-4686 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-597-4686 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 5305-01-597-4686 was assigned to the Federal Catalog?

It was assigned 15 years ago, on Thu, Jun 9, 2011