5305-01-556-9557

Find complete technical information, availability, and procurement data for: 5305-01-556-9557
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-556-9557

Item Name Code

29294

Assigment Date

10/10/2007 (18 years ago)

A framework fabricated of rigid material designed to protect one or more switches against external damage and/or prevent inadvertent throwing of one or more switches. It may have the capability to be padlocked and include mounting hardware.

flat countersunk head style, 2.778 inches nominal fastener length, 3a thread class, right-hand thread direction, 0.403 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: 0.403 inches nominal
Fastener Length: 2.778 inches nominal
Head Style: flat countersunk
Head Diameter: 0.464 inches nominal
Grip Diameter: 0.249 inches minimum
Internal Drive Style: offset cruciform (torque set)
End Item Identification: b-1b aircraft
Nominal Thread Diameter: 0.250 inches
Grip Length: 2.375 inches nominal
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 100.0 degrees nominal
Material: steel comp 4140 overall
Material Document And Classification: ams6349 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416. ty 2 cl 2 fed spec single treatment response overall
Thread Series Designator: unjf

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
NAS1580A4T38	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-556-9557?

The FSCG of the NSN 5305-01-556-9557 is 5305

Does the NSN 5305-01-556-9557 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-556-9557 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 5305-01-556-9557 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-556-9557 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 5305-01-556-9557 was assigned to the Federal Catalog?

It was assigned 18 years ago, on Wed, Oct 10, 2007