5305-01-268-9781

Find complete technical information, availability, and procurement data for: 5305-01-268-9781
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-268-9781

Item Name Code

16282

Assigment Date

12/10/1987 (38 years ago)

A hardened externally threaded fastener whose thread extends to the bearing surface of the head. The thread may be fluted or otherwise designed to cut or form its own mating thread. Excludes:screw, assembled washer.

0.595 inches minimum and 0.625 inches maximum fastener length, flat countersunk head style, 0.512 inches minimum and 0.625 inches maximum thread length, 3a thread class, 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: 0.512 inches minimum and 0.625 inches maximum
Fastener Length: 0.595 inches minimum and 0.625 inches maximum
Head Style: flat countersunk
Head Diameter: 0.359 inches minimum and 0.411 inches maximum
Locking Feature: pellet or strip or patch threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.190 inches
Width Across Flats: 0.125 inches nominal
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 45.0 rockwell c maximum overall
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Material: steel overall
Material Document And Classification: 66 fed std single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty 2 cl 2 fed spec single treatment response overall
Thread Series Designator: unc

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
MS24667-21L	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-268-9781?

The FSCG of the NSN 5305-01-268-9781 is 5305

Does the NSN 5305-01-268-9781 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-268-9781 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 5305-01-268-9781 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-268-9781 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 5305-01-268-9781 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Thu, Dec 10, 1987