556-6408040-61

View detailed technical data, stock status, and sourcing information for: 556-6408040-61
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-457-0823

Item Name Code

16282

Assigment Date

07/10/1998 (28 years ago)

A protective device to provide a discharge path for lightning between line and line, and/or line and ground. See also protector, telephone.

right-hand thread direction, 1.746 inches minimum and 1.750 inches maximum fastener length, 1.000 inches minimum and 1.500 inches maximum thread 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: 1.000 inches minimum and 1.500 inches maximum
Fastener Length: 1.746 inches minimum and 1.750 inches maximum
Head Style: flat chamfer
Head Diameter: 0.365 inches minimum and 0.375 inches maximum
Head Height: 0.244 inches minimum and 0.250 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.188 inches nominal
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 130000 pounds per square inch
Material: aluminum alloy overall
Material Document And Classification: qq-n-261,cl-a fed spec single material response overall
Thread Series Designator: unrc

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
556-6408040-61	Socket Head Cap Screw
MILS1222TYII1/4 -20UNCR-3AX1.75	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-457-0823?

The FSCG of the NSN 5305-01-457-0823 is 5305

Does the NSN 5305-01-457-0823 have a Schedule B code assigned?

Yes, the Schedule B code is 7616106000

Does NSN 5305-01-457-0823 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 5305-01-457-0823 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-457-0823 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 5305-01-457-0823 was assigned to the Federal Catalog?

It was assigned 28 years ago, on Fri, Jul 10, 1998