5305-01-435-8521

Find complete technical information, availability, and procurement data for: 5305-01-435-8521
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-435-8521

Item Name Code

29294

Assigment Date

09/04/1996 (29 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.

flat countersunk head style, 0.840 inches nominal thread length, 3.3875 inches minimum and 3.4175 inches maximum fastener length, right-hand thread direction, 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: 0.840 inches nominal
Fastener Length: 3.3875 inches minimum and 3.4175 inches maximum
Head Style: flat countersunk
Head Diameter: 1.047 inches minimum and 1.146 inches maximum
Grip Diameter: 0.5605 inches minimum and 0.5615 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.5625 inches
Grip Length: 2.5525 inches minimum and 2.5725 inches maximum
Thread Quantity Per Inch: 18
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Material: steel comp e4340 and steel comp 8740 overall
Material Document And Classification: mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or ams 6322 assn std 2nd material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416, type 2 class 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
BACB30LU9-41	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-435-8521?

The FSCG of the NSN 5305-01-435-8521 is 5305

Does the NSN 5305-01-435-8521 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-435-8521 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 5305-01-435-8521 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-435-8521 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 5305-01-435-8521 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Wed, Sep 4, 1996