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)

1.139 inches minimum and 1.250 inches maximum thread length, 3a thread class, right-hand thread direction, flat chamfer head style, 1.210 inches minimum and 1.250 inches maximum fastener length

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