5305-01-051-9906

Find complete technical information, availability, and procurement data for: 5305-01-051-9906
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-051-9906

Item Name Code

18257

Assigment Date

12/09/1977 (48 years ago)

2a thread class, 1.188 inches minimum and 1.250 inches maximum fastener length, 1.034 inches minimum and 1.250 inches maximum thread length, right-hand thread direction, 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: 1.034 inches minimum and 1.250 inches maximum
Fastener Length: 1.188 inches minimum and 1.250 inches maximum
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: 120000 pounds per square inch
Hardness Rating: 25.0 rockwell c minimum and 34.0 rockwell c maximum overall
Material: steel overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 3 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Below is a list of NSNs that have been officially superseded by this NSN: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
5305-01-086-7845	No Name Available	07/01/1992

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
501153-12	Hexagon Head Cap Screw
B1821AH050C125N	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-051-9906?

The FSCG of the NSN 5305-01-051-9906 is 5305

Does the NSN 5305-01-051-9906 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-051-9906 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 5305-01-051-9906 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-051-9906 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 5305-01-051-9906 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Fri, Dec 9, 1977