5305-01-026-3780

Find complete technical information, availability, and procurement data for: 5305-01-026-3780
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-026-3780

Item Name Code

16282

Assigment Date

08/22/1976 (50 years ago)

3a thread class, right-hand thread direction, 1.688 inches nominal fastener length, flat chamfer head style, 0.438 inches nominal thread 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: 0.438 inches nominal
Fastener Length: 1.688 inches nominal
Head Style: flat chamfer
Head Diameter: 0.438 inches nominal
Head Height: 0.219 inches nominal
Locking Feature: patch threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.188 inches nominal
Thread Quantity Per Inch: 20
Hardness Rating: 38.0 rockwell c minimum and 42.0 rockwell c maximum overall
Special Features: self locking device
Material: steel overall
Material Document And Classification: aisi 4037 assn std single material response overall
Surface Treatment: zinc overall
Surface Treatment Document And Classification: qq-z-325,ty 2,cl 3 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
2462437 PIECE 13	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-026-3780?

The FSCG of the NSN 5305-01-026-3780 is 5305

Does the NSN 5305-01-026-3780 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-026-3780 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 5305-01-026-3780 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-026-3780 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 5305-01-026-3780 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Sun, Aug 22, 1976