5305-01-307-1821

Find complete technical information, availability, and procurement data for: 5305-01-307-1821
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-307-1821

Item Name Code

16282

Assigment Date

09/07/1989 (36 years ago)

1.210 inches minimum and 1.250 inches maximum fastener length, 3a thread class, flat chamfer head style, 1.139 inches minimum and 1.250 inches maximum thread length, 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: 3a
Thread Direction: right-hand
Thread Length: 1.139 inches minimum and 1.250 inches maximum
Fastener Length: 1.210 inches minimum and 1.250 inches maximum
Head Style: flat chamfer
Head Diameter: 0.365 inches minimum and 0.375 inches maximum
Head Height: 0.244 inches minimum and 0.250 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.187 inches minimum and 0.190 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 80000 pounds per square inch
Hardness Rating: 80.0 rockwell b minimum overall
Minimum Yield Strength: 30000 pounds per square inch
Color: gray/grey overall
Material: steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316 or steel comp 384 or steel comp xm-7 overall
Surface Treatment: ceramic overall
Surface Treatment Document And Classification: mil-c-81751,ty 1 cl 4 mil spec single treatment response 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
6242949-25	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-307-1821?

The FSCG of the NSN 5305-01-307-1821 is 5305

Does the NSN 5305-01-307-1821 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-307-1821 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 5305-01-307-1821 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-307-1821 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 5305-01-307-1821 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Thu, Sep 7, 1989