4491146-F-16

View detailed technical data, stock status, and sourcing information for: 4491146-F-16
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-114-5145

Item Name Code

18257

Assigment Date

06/18/1981 (45 years ago)

right-hand thread direction, 1.250 inches minimum thread length, 1.946 inches minimum and 2.040 inches maximum fastener length, hexagon 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: 1.250 inches minimum
Fastener Length: 1.946 inches minimum and 2.040 inches maximum
Head Style: hexagon
Head Height: 0.302 inches minimum and 0.323 inches maximum
Width Between Flats: 0.736 inches minimum and 0.750 inches maximum
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 80000 pounds per square inch
Minimum Yield Strength: 40000 pounds per square inch
Material: nickel alloy 400 overall
Material Document And Classification: qq-n-281 cl a fed spec 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: unf
Nondefinitive Spec/Std Data: 2 type and 10p style

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
4491146-F-16	Hexagon Head Cap Screw
SS426-4491146-PIECE 16	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-114-5145?

The FSCG of the NSN 5305-01-114-5145 is 5305

Does the NSN 5305-01-114-5145 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-114-5145 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 5305-01-114-5145 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-114-5145 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 5305-01-114-5145 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Thu, Jun 18, 1981