21018823-104

View detailed technical data, stock status, and sourcing information for: 21018823-104
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-085-7363

Item Name Code

06672

Assigment Date

11/15/1979 (46 years ago)

An insulator that is essentially thin and flat, with one through hole centrally located. The general shape may vary by the addition of features such as beveled edges, indented surfaces, through hole keys, and/or peripheral flats. The thickness measured between the two parallel bearing surfaces must not exceed 25 percent of the outside diameter or the shortest distance between peripheral flats. The thickness measured between the two parallel bearing surfaces must not exceed 25 percent of the outside diameter or the shortest distance between peripheral flats. Excludes:items with more than one hole. See also insulator, disk; insulator, bead; insulator, bushing; and insulator, plate

1.000 inches nominal thread length, right-hand thread direction, patch threads locking feature, 2a thread class, headless (setscrew) head style

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: 1.000 inches nominal
Head Style: headless (setscrew)
Locking Feature: patch threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.125 inches minimum and 0.127 inches maximum
Thread Quantity Per Inch: 32
Special Features: 0.3740-0.3745 in. dia spherical ball point
Material: steel corrosion resisting overall
Surface Treatment: oxide overall
Thread Series Designator: unef

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-01-018-0510	No Name Available	09/01/1985

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
21007986-102	Setscrew
21018823-102	Setscrew
21018823-104	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-01-085-7363?

The FSCG of the NSN 5305-01-085-7363 is 5305

Does the NSN 5305-01-085-7363 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-085-7363 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 5305-01-085-7363 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-085-7363 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 5305-01-085-7363 was assigned to the Federal Catalog?

It was assigned 46 years ago, on Thu, Nov 15, 1979