123-4403540 PART 191

View detailed technical data, stock status, and sourcing information for: 123-4403540 PART 191
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-443-5521

Item Name Code

16282

Assigment Date

04/12/1997 (29 years ago)

right-hand thread direction, 1.800 inches maximum thread length, 2.000 inches nominal fastener length, flat chamfer head style, 3a thread class

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: 1.800 inches maximum
Fastener Length: 2.000 inches nominal
Head Style: flat chamfer
Head Diameter: 1.107 inches minimum and 1.125 inches maximum
Head Height: 0.740 inches minimum and 0.750 inches maximum
Locking Feature: patch threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.750 inches
Width Across Flats: 0.625 inches nominal
Thread Quantity Per Inch: 10
Minimum Tensile Strength: 170000 pounds per square inch
Material: steel uns k03104 overall
Material Document And Classification: astm a574 assn std single material 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
123-4403540 PART 191	Socket Head Cap Screw
123-4498410 PART 191	Socket Head Cap Screw
4403540 PART 191	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-443-5521?

The FSCG of the NSN 5305-01-443-5521 is 5305

Does the NSN 5305-01-443-5521 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-443-5521 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 5305-01-443-5521 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-443-5521 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 5305-01-443-5521 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Sat, Apr 12, 1997