5305-01-123-1398

Find complete technical information, availability, and procurement data for: 5305-01-123-1398
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-123-1398

Item Name Code

01852

Assigment Date

12/06/1981 (44 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. For items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. Excludes:thumbscrew.

2a thread class, 0.250 inches nominal thread length, flat countersunk undercut head style, 0.155 inches nominal first diameter from head, 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: 2a
Thread Direction: right-hand
Thread Length: 0.250 inches nominal
Head Style: flat countersunk undercut
First Diameter From Head: 0.155 inches nominal
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Externally Relieved Body Diameter Quantity: 1
Special Features: epoxy primer
Surface Treatment: enamel overall
Thread Series Designator: unf

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
771731-1	Externally Relieved Body Screw

FAQs

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

What is the FSCG of the NSN 5305-01-123-1398?

The FSCG of the NSN 5305-01-123-1398 is 5305

Does NSN 5305-01-123-1398 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 5305-01-123-1398 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-123-1398 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 5305-01-123-1398 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Sun, Dec 6, 1981