123-4403540 PART 98

View detailed technical data, stock status, and sourcing information for: 123-4403540 PART 98
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-442-6559

Item Name Code

16282

Assigment Date

03/20/1997 (29 years ago)

A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.

1.250 inches minimum and 1.750 inches maximum thread length, 3a thread class, 1.750 inches nominal fastener length, right-hand thread direction, flat chamfer head style

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: 1.250 inches minimum and 1.750 inches maximum
Fastener Length: 1.750 inches nominal
Head Style: flat chamfer
Head Diameter: 0.550 inches minimum and 0.562 inches maximum
Head Height: 0.368 inches minimum and 0.375 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.375 inches
Width Across Flats: 0.312 inches nominal
Thread Quantity Per Inch: 16
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 45.0 rockwell c maximum overall
Minimum Yield Strength: 155000 pounds per square inch
Material: nickel alloy 400 overall
Material Document And Classification: qq-n-281 fed spec 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 98	Socket Head Cap Screw
123-4498410 PART 98	Socket Head Cap Screw
4498410-98	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-442-6559?

The FSCG of the NSN 5305-01-442-6559 is 5305

Does the NSN 5305-01-442-6559 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-442-6559 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 5305-01-442-6559 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-442-6559 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 5305-01-442-6559 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Thu, Mar 20, 1997