5305-01-553-0143

Find complete technical information, availability, and procurement data for: 5305-01-553-0143
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-553-0143

Item Name Code

18257

Assigment Date

07/02/2007 (19 years ago)

A device of various shapes to be permanently attached to the structure of an aircraft. It is designed to permanently mount and/or support an integral member, or group of members of the airframe in a proper position and bear the stress imposed by the components being supported. It may have mounting provisions, such as slots, holes, and/or attachments to facilitate installation. Excludes:items which are primarily designed for dampening shock and/or vibration. Excludes:bracket, angle; bracket, double angle; bracket, shelf; bracket, mounting; bracket (1), structural component, aircraft; and radius block.

right-hand thread direction, hexagon head style, 1.250 inches nominal fastener length, 2a thread class, 1.240 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: 2a
Thread Direction: right-hand
Thread Length: 1.240 inches nominal
Fastener Length: 1.250 inches nominal
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
End Item Identification: mark 38,model 2
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 20
Part Name Assigned By Controlling Agency: hex cap screw (finished hex bolt)
Material: steel corrosion resisting overall
Material Document And Classification: astm f593,alloy grp 2,default cond cw assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: astm a380 assn std single treatment response overall
Thread Series Designator: unf

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
AES01F500A25CH6A31	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-553-0143?

The FSCG of the NSN 5305-01-553-0143 is 5305

Does the NSN 5305-01-553-0143 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-553-0143 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 5305-01-553-0143 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-553-0143 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 5305-01-553-0143 was assigned to the Federal Catalog?

It was assigned 19 years ago, on Mon, Jul 2, 2007