103-1820

View detailed technical data, stock status, and sourcing information for: 103-1820
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-616-6375

Item Name Code

18257

Assigment Date

01/01/1963 (63 years ago)

1.250 inches minimum and 1.442 inches maximum thread length, right-hand thread direction, 2a thread class, 2.500 inches nominal fastener length, hexagon 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: 1.250 inches minimum and 1.442 inches maximum
Fastener Length: 2.500 inches nominal
Head Style: hexagon
Head Height: 0.302 inches minimum and 0.323 inches maximum
Width Between Flats: 0.736 inches minimum and 0.750 inches maximum
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 13
Minimum Tensile Strength: 80000 pounds per square inch
Material: steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316 overall
Material Document And Classification: 66 fed std all material responses overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Thread Series Designator: unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-107-1592	No Name Available	04/01/1986
5305-00-206-1679	No Name Available	07/02/1979
5305-00-416-8258	No Name Available	02/01/1984
5305-00-637-9517	No Name Available	09/01/2023
5305-00-823-5898	No Name Available	03/29/1972
5305-00-834-1734	No Name Available	10/01/1982

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
1/2-13X2-1/2 IN.	Hexagon Head Cap Screw
103-1820	Hexagon Head Cap Screw
213824	Hexagon Head Cap Screw
7056114P001	Hexagon Head Cap Screw
E108186 PART NO 242	Hexagon Head Cap Screw
MS35307-417	Hexagon Head Cap Screw
SK 462 ITEM 5	Hexagon Head Cap Screw
SK464 ITEM 5	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-616-6375?

The FSCG of the NSN 5305-00-616-6375 is 5305

Does the NSN 5305-00-616-6375 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-616-6375 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 5305-00-616-6375 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-616-6375 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 5305-00-616-6375 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963